I just realized how many similarities both shows have. (This is not a complete list, these are just the similarities I can think of.)
- Comedy
- First episode released in 1999 (FG on Jan 31 and SBSP on May 1)
- Creators have first names starting with S (Seth MacFarlane and Stephen Hillenburg)
- Creators have 10 letters in last name
- Both shows have a loveable idiot with their first name starting with P (Peter and Patrick)
- Both shows have a punching bag character (Meg and Squidward)
- Both shows have a small but evil genius (Stewie and Plankton)
- Both shows' main characters work at a food/drink maker (Peter works at Pawtucket Patriot Brewery and SpongeBob works at Krusty Krab)
- FG and SB both have spin offs (The Cleveland Show for FG and Kamp Koral and TPSS for SpongeBob)
- Both shows are generally considered to have declined in quality around the 6-8th season and recovered later in the series