Jack has always had a certain kinship with the elderly. While many people see their medical needs skyrocket in their final years, Jack was a million dollar baby within his first few months. They are both early risers. Jack used a walker for a time when he was getting more mobile. His diet is somewhat similar to what you'd find in a nursing home (pureed, minus the Cheetos).
But the tie that binds them most closely is their mutual love of Wheel of Fortune. As a child of the 80's, I watched a little Wheel of Fortune myself. Over time, it did not rise to my top 100 things to watch on TV. How many times can you watch someone win a trip to Sandals Resort, act happy when they win the car instead of the big cash prize in the bonus round, and see Vanna get yet another face lift? The commercials during the breaks are usually for Bengay or prunes. I probably went for a good 20 years without watching an episode all of the way through.
That was until Jack found Wheel of Fortune.
Due to some of his vision problems, he is drawn to movement and color. What could be better than turning a multi-colored wheel with dollar signs? Not to mention, every time a person correctly guesses a letter there is a nice "bing" sound and the letter space lights up. Pat Sajak's jokes may be a little lame, but Jack can tolerate them because of the bells and whistles associated with the show that has stayed mostly the same for more than 30 years.
I don't know how much longer Pat and Vanna can stay at it, but as long as they do, Jack will be watching with millions of loyal senior citizen viewers.