Oops! I meant that only two of the episodes on your list, Minor Muppetz, have SPECIFIC intros. I miswrote my post.
Anyway, here's a perfect list of The Muppet Show DVD's 16-20:
(Perhaps Time-Life could think of the Did-You-Knows.)
Volume 16
*Charles Aznavour, Loretta Switt, Zero Mostel
*Muppets On The Front of the DVD/VHS: Gonzo, Dr. Teeth, Rizzo, Animal
*Muppetism: Rizzo (the rat)
*Movie Mania: Wizard of Oz (a Frank Oz Muppet acts like a Wizard)
*From The Archives: Janice, Floyd
Volume 17
*Candice Bergen, Ethel Merman, Doug Henning
*Muppets On The Front of the DVD/VHS: Fozzie, Kermit, Scooter
*Muppetism: Johnny (the man) & Sal (the ape)
*Movie Mania: Jurrassic Park (a dinosaur tries to park his car)
*From The Archives: Fozzie Bear
Volume 18
*Spike Milligan, Wally Boag, Milton Berle
*Muppets On The Front of the DVD/VHS: Statler, Waldorf
*Muppetism: The Swedish Chef (or The Gibberish Chef)
*Movie Mania: King Kong (a Chinese Royal Gorrilla talks about "Hong Kong")
*From The Archives: Sam the Eagle
Volume 19
*Bernadette Peters, Anne Murray, Alan Arkin
*Muppets On The Front of the DVD/VHS: Robin, Sweetums, Gonzo
*Muppetism: Sweetums (the sweetest creep)
*Movie Mania: Muppet Screen Test - Singin' In The Rain
*From The Archives: Robin the Frog
Volume 20
*Paul Williams, Shirley Bassey, Phyllis George
*Muppets On The Front of the DVD/VHS: Link, Piggy, Dr. Strangepork
*Muppetism: Sam (an American)
*Movie Mania: Star Wars (Beaker interviews a group of stars fighting)
*From The Archives: Scooter
(What do you think, (Disney)? If you don't have the rights about that, OK, here's the plan: You could bring the rights of The Muppets to Time-Life, then Time-Life would be honored to make volume 16-20 of The Best of The Muppet Show, and you would also ask Time-Life to bring you back the rights of the Muppets immediately after the volumes from 16-20 are released all done. After all, it's the 30th Anniversary of The Muppet Show. Would this be a deal?)