what was Jed and others looking at? once they showed "IT" ....a commercial ad ran.
come on and guess....another hint....Jethro ate plenty of this on many of the episodes.

Wild guess....
A billboard for Kellogg's Corn Flakes.

Ding, Ding, Ding.....great answer and it's
100% CORRECT...........I'm surprised my question was not answered sooner.