So, on YouTube I watched an episode recently: Burns and Allen: The Burnses and Mortons Go to New York, in which there are a few jokes about a TV Guide magazine. Here's some screen captures, the show is below.
While watching, and seeing the TV Guide, and had to find out if it was a real magazine. I searched and look what I found on eBay:
The autograph looks real after some investigation. The interior story of the TV Guide article that was being read on the show: