Is there a VHS tape that contains the Gilda Radner and Laraine Newman skit about puppy-uppers and doggy-downers?

Yes, the skit featuring Gilda Radner and Laraine Newman about "puppy-uppers" and "doggy-downers" is part of the classic "Saturday Night Live" episodes from the late 1970s. While there may not be a specific VHS tape solely dedicated to this skit, many compilations and collections of "SNL" sketches from that era include it. You might find it on various "SNL" retrospectives or best-of collections available on VHS or other formats.