- Country: UK
- Genres: Documentary, Short
- Release: 2012-03-13
- Director: N/A
- Writers: N/A
- Language: English
- Stars: Toby Hadoke , Bob Baker , Terrance Dicks , Barry Letts
- Runtime: 23 min
- Awards: N/A
- AKA: Happy Birthday to Who (United Kingdom) , Happy Birthday to Who
- Plot: A look back at the making of the Doctor Who (1963) serial "The Three Doctors".
- IMDB:tt3177550