Alley Oop by Jonathan Lemon and Joey Alison Sayers for December 21, 1977
Transcript:
doc! A.d. 378 Abort mission oscar: there! that should get his attention! man: it's really amazing that he can actually see this back in the lab! man: Yes, and I'll bet he brings us home in a hurry when he realizes what's happened! but there is no one present to receive the time-traveler's signal, for the lab is deserted.