| Genre: | Documentary |
| Creator: | Charles M. Schulz |
| Director: | Lee Mendelson |
| Developer: | Bill Melendez |
| Presenter: | Carl Reiner |
| Voices: | Duncan Watson Gail Davis Liam Martin Lynn Mortensen Greg Felton Bill Melendez Linda Ercoli Stuart Brotman James Ahrens |
| Location: | Coast Recorders, San Francisco, California |
| Theme Music Composer: | Vince Guaraldi |
| Opentheme: | "Linus and Lucy" |
| Endtheme: | "Linus and Lucy" |
| Composer: | Vince Guaraldi |
| Country: | United States |
| Language: | English |
| Company: | Lee Mendelson Film Productions Bill Melendez Productions |
| Executive Producer: | Lee Mendelson |
| Producer: | Warren Lockhart, Lee Mendelson |
| Editor: | Paul Preuss Chuck McCann |
| Runtime: | 60 min. |
| Network: | CBS |
Happy Anniversary, Charlie Brown is an animated TV documentary that celebrates 25 years of the Peanuts comic strip. The special first aired January 9, 1976 on CBS.[1] The special includes clips from the previous 14 Peanuts specials and interview segments with creator Charles M. Schulz, with narration by Carl Reiner. The cast in this special (excluding Lynn Mortensen and Linda Ercoli) reprised their roles in a Peanuts movie in 1977.
A 30th anniversary special, Happy Birthday, Charlie Brown, followed in 1979.