That '70s Show S07 E10 Surprise, Surprise

"Be groovy... be very groovy!"

Hyde joins the disgruntled group of guys that can say "Kelso Slept With My Sister", much to his displeasure. Donna plugs a calender on the air for Red's muffler shop until she discovers it is full of scantily clad babes on hotrods. Kitty once again tries to teach Jackie how to bake, with disastrous results.