The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Albums (2 members)
- Blog posts (0 members)
- Browse (10 members)
- Candidates for deletion (0 members)
- Category (1 member)
- Characters (2 members)
- Disambiguations (0 members)
- Documentation templates (1 member)
- Episodes (145 members)
- Events (2 members)
- Fans (4 members)
- Food (6 members)
- Guests (7 members)
- Help (0 members)
- Hosts (6 members)
- Images (2 members)
- Interview (1 member)
- Items (2 members)
- Locations (2 members)
- Los Angeles (131 members)
- Music (26 members)
- New York (11 members)
- News (1 member)
- Pages with broken file links (1 member)
- People (20 members)
- Playlists (12 members)
- Quests (2 members)
- Running Jokes (7 members)
- Season 1 (14 members)
- Season 2 (20 members)
- Season 3 (28 members)
- Season 4 (31 members)
- Season 5 (24 members)
- Season 6 (32 members)
- Season 7 (5 members)
- Segments (7 members)
- TV/Movies (3 members)
- Template documentation (26 members)
- Templates (27 members)
- Templates/Infobox (8 members)
- Templates/Navbox (1 member)
- Templates/Quote (1 member)
- Topics (16 members)
- Videos (8 members)