Hi Sarah B. Only saw one episode of this show, the one with Rudy the Road Runner (voiced by Bill Baretta). That was back when Fox's shows had closed captioning. However, I do have some possible people you could talk to in an attempt to get copies on VHS. Talk to both Xerus and MuppetDude (the one from Kentucky), though the latter's on summer vacation now so I don't know if you'd be able to get a timely reply from him. Either of these two guys has the entire three-season run of the show in their Muppet library.
Hope this helps and have a good day.