From a hospital health-education channel
to one of Thailand’s leading million-subscriber health channels on YouTube –
powered by full-funnel Content, SEO & GEO planning by Vault Mark.
“Rama Channel crossed 1,000,000 subscribers during the ‘Road to 1M’ campaign in late 2025.”
Key Results
- Reached 1,000,000+ subscribers on YouTube within the Road to 1M campaign period
- Strengthened Rama Channel’s positioning as a “trusted, easy-to-watch health education channel” for Thai audiences of all ages
- Laid the foundation for future nationwide health campaigns and multi-channel communication across TV, online and events
About Rama Channel
Rama Channel is the official health-media channel of the Faculty of Medicine Ramathibodi Hospital, Mahidol University.
All content is created and hosted by doctors and medical specialists, covering:
- everyday health and self-care
- non-communicable diseases (NCDs)
- and more advanced, specialty topics
The channel combines full-length programs, live interviews and short-form videos that break down medical information into language everyday people can understand.
Over time, Rama Channel has become one of the most trusted health-information sources for Thais – both on television and online.
Project Objective: Road to 1M
The Rama Channel Road to 1,000,000 Subscribers project set out to:
- Hit the symbolic milestone of 1,000,000 YouTube subscribers within a defined timeframe
- Make “health knowledge from Ramathibodi doctors” easier to discover on both YouTube and Google
- Build a sustainable growth foundation beyond the 1M milestone, not just a short-term spike
Challenges
Before the project started, the Rama Channel team was facing several key challenges:
- The channel already had a loyal audience, but subscriber growth was slowing down
- On YouTube and Google, many health-related searches were dominated by general media, entertainment creators or international channels
- Audience behavior had changed significantly:
- Shorter attention spans
- Desire for fast, clear answers
- But still a strong need for reliable, non-sensational medical information – not clickbait or drama
- The in-house team was already busy running TV broadcasts, live shows and ongoing production,
so they needed a strategic digital partner rather than just someone to “run ads or post for us”
This is where Vault Mark came in – to complete the puzzle on the side of AI-led SEO, GEO and YouTube Growth Strategy.
Vault Mark Strategy
AI-led Content, SEO & GEO:
Making health knowledge easier to discover and cite
Vault Mark designed a four-pillar strategy for Rama Channel:
3.1 Audience & Content Mapping
We analyzed Rama Channel’s core audience segments, including:
- Working-age adults starting to care more about their health
- Seniors and caregivers
- People living with chronic conditions such as diabetes, hypertension and high cholesterol
- General viewers who want to “prevent before it happens”
We then:
- Collected real questions and pain points from search data, comments and inbox messages
- Clustered them into content themes and series
- Mapped key health topics (e.g. diabetes, heart disease, cholesterol, eye health, NCDs, mental health, etc.) to:
- keywords Thai users actually search for, and
- formats they can finish watching, whether full-length programs or short videos
3.2 AI & GEO (Generative Engine Optimization)
We optimized video metadata so that both people and AI systems clearly understand each video’s focus:
- Refined titles, descriptions, tags and playlists for YouTube and search
- Designed keyword patterns and phrasing that help content:
- surface in YouTube and Google search results, and
- have a better chance of being referenced or recommended in relevant contexts in the future
(AI answers, recommendation systems, etc.)
3.3 YouTube SEO & Watch Journey Design
We designed a watch journey that moves viewers from one piece of content to the next, instead of stopping at a single video:
- Short clip → in-depth explanation video → playlist organized by disease/topic
We also:
- Adjusted subscribe prompts and bell reminders to be natural and sincere, not pushy
- Framed calls-to-action around the benefit: “Subscribe so you don’t miss health knowledge that helps you take care of yourself and the people you love.”
3.4 Measurement & Optimization
We tracked key YouTube growth metrics, including:
- Views, watch time and retention
- CTR from titles and thumbnails
- Subscribers gained per video / per period
These insights were then used to decide:
- Which content formats to produce more of
- How to name and package videos to improve click-through
- Which topics deserved full series or short-form recaps
3.5 AI-Powered Google Ads & YouTube Campaigns
Beyond content structure and on-channel SEO/GEO, Vault Mark also leveraged Google Ads’ AI capabilities to accelerate discovery among the right audiences, focusing on three core areas:
Smart Bidding & Audience Signals
We used Google Ads Smart Bidding strategies combined with tailored audience signals such as:
- Users interested in health, diabetes, heart disease and NCDs
- People searching for hospitals, check-ups or specific treatments
- Viewers who had watched related health videos on YouTube
This allowed Google’s AI to prioritize users with real intent and interest, while making the most of the media budget.
YouTube & Video Campaigns to Boost Channel Discovery
We designed YouTube and video campaigns to do two jobs at once:
- Introduce new viewers to Rama Channel using easy-to-watch shorts and full episodes
- Bring back existing viewers and encourage them to watch more and subscribe – without feeling “sold to”
Every creative reinforced one central message:
“Rama Channel is the health channel from Ramathibodi doctors.”
to continuously build trust and brand memory.
Integrating Google Ads with SEO & GEO
Instead of running ads in isolation, Vault Mark turned Google Ads into a feedback engine for SEO and GEO:
- High-view and high-retention topics → expanded into new episodes or short formats
- Search terms from campaigns → used to refine future video titles and descriptions
- High-engagement audiences → inspired new content tailored to their interests
As a result, Google Ads campaigns didn’t sit outside the channel strategy.
They acted as a “growth booster” that helped health-interested viewers discover Rama Channel more easily – and helped the roadmap to 1,000,000 subscribers move faster and more confidently.
Results
Once the roadmap was implemented, Rama Channel on YouTube was able to:
- Reach 1,000,000+ subscribers, meeting the Road to 1M target
- Expand reach for content around non-communicable diseases (NCDs) and other high-priority health topics, making it easier for Thais to access reliable information
- Sharpen the brand perception of “Rama Channel” as: “A doctor-led health channel that explains complex topics in everyday language.”
Key Learnings
From the Rama Channel Road to 1M case, we learned that:
- Great content alone isn’t enough if there’s no system to help people find it and watch it through.
- AI, SEO and GEO do not replace doctors or experts – they amplify expert voices so they can reach further and help more people.
- A health channel can scale to mass audiences without compromising medical accuracy, if the storytelling is designed to be simple and human-friendly.
- Public health organizations and government institutions can absolutely compete on YouTube and Search, as long as they have the right data, strategy and partners who understand both worlds.
If your organization wants to build a knowledge channel or grow a sustainable audience on YouTube and Search –
whether you’re a hospital, clinic, public agency or private company..
Vault Mark can help you design an AI-led SEO, Generative Engine Optimization (GEO) and YouTube Growth strategy tailored to your context.
👉 : Request a YouTube & GEO Roadmap Consultation
👉 : Contact the Vault Mark team
