I DVD-R'd the appearance, so I guess I'll be the first to transcribe it.
**SPOILERS**
Kermit appears to present a birthday gift to Whoopi. Enfolded in the "special teal-colored" box that Kermit refers to is something she doesn't have, but has always wanted. When the box is lifted, Pepe appears in full tux, does a little jig, and proposes to Whoopi with a ring. (So yeah, who knew they were dating?

) They also promoted the Thanksgiving special with Lady Gaga, and yes, they did preview a video clip. It's of this scene...
...and from viewing that bit of surreality, I can only assume that this special is either going to be great or hilariously terrible.