It’s not clear what sitcom Tom Bergeron is talking about, or even if he is being serious about appearing in a sitcom.
However, it is clear that he is back to work, and it’s not for ABC or Dancing With the Stars.
(NBC notably doesn’t have any comedies on its Fall TV schedule, and other NBCU networks aren’t very sitcom-friendly.)
Not that the info is stopping fans from sending their hopes and dreams out into the world and willing his return to the show to manifest in the future, despite the fact that there aren’t any openings.