Friends is a spin-off of
Mad About You and you or the NnnnBC won't convince me otherwise.
And for some honorary mentions,
Mad About You itself was a follow-up act in our TV for the Friday7.30 p.m. slot for
Flying Blind (1992-93) with Téa Leoni and Corey Parker and Téa Leoni.
Townies (1996) was a fun short-lived show before Jenna Elfman went to star that other show.
I don't know if these other guys ever starred anything.
I wish I had caught more of
Off Centre (2001-02) starring some of the guys from American Pie not named Jason Biggs or the three-first-names weirdo Seann William Scott.
Also, this guy laughs at your unmention for the main event.