Program: "Family Feud"
Syndicated
Packager: Pearson Television & Mark Goodson Productions
Members of the cast of Freaks and Geeks appeared on Family Feud in early 2000 (I think) appeared on "Family Feud", hosted by Louie Anderson, against the cast of the WB's "Popular", playing for charity. I believe Linda Cardellini, John Daley, Martin Starr, Samm Levine, and Busy Philipps appeared, but I could be wrong. I believe they won twice out of the three days I watched.
Program: Linda Cardellini: "The Tonight Show With Jay Leno"
Network: NBC
Packager: Big Dog Productions & NBC Studios
Linda Cardellini appeared on "The Tonight Show With Jay Leno" in either 1999 or 2000 to plug Freaks and Geeks. I didn't see the show so thats about all the information I know.
Program: Samm Levine: "Late Night With Conan O'Brian"
Network: NBC
Packager: Broadway Video & NBC Studios
Yet another apperence, I did not see, by a Freaks and Geeks star. Hey, I need my sleep. Anyway, it was made by Samm Levine in 1999 or 2000.
Program: "Say What? Karaoke"
Network: MTV
Packager: MTV Productions
In Febuary 2000, Sarah Hagen, John Daley, and Samm Levine appeared on "Say What? Karaoke" as contestants. I remember them singing "Allstar" by Smash Mouth and them making it to the final round, the group didn't do too well while singing Cher's "Believe" and lost, but a good effort by all
Program: "The Late Show With David Letterman"
Network: CBS
Packager: Worldwide Pants
Linda Cardellini appeared on "The Late Show" in April of 2000 to discuss Freaks and Geeks. This was sadly the day after Freaks and Geeks was cancelled but it was still nice to see Linda.
Program: "The List"
Network: VH1
Packager: VH1 Productions
Seth Rogen, John Daley, Samm Levine and Natasha Melnick appeared on "The List" in 2000 to talk about there favorite music. Seth acted as moderator.
Thanks to those who helped the new information