Wikipedia lists the shorts "Don vs. Raph", "Turtles Take Time (and Space)", "Pizza Friday", "Teenage Mecha Ninja Turtles", "'Boulangerie'", "We Strike Hard and Fade Away into the Night" and the various "TMNT Team Up!" shorts on the episode list of this show.
But the thing is that most of these seem to have little in common with the show, or each other for that matter. Most have widely different character designs, voice casts and characterisations. And the Team Up shorts are clearly more inspired by the Fred Wolf show, so even bother claiming they have anything to do with the Nick Show?