TMNT, either 80s/90s era cartoon or the current Nick version (but seriously, the 80s/90s please) would be a giant hit.
Recently found a compilation DVD of some of the old TMNT classics at the bargain bin of random DVDs next to the Walmart checkout. My son loves the current Nick show, but he was all in on the version I grew up with. He totally understands why my old TMNT figures look different now.