Shows DH and I both like to watch regularly:
Jeopardy. God Almighty, I don't know what I'm going to do when Alex Trebek finally retires. I've been an avid Jeopardy fan from when I was a little kid--my brother and I would order the home game when it came out in January and by February we would have already played all the games and had to wait until the following year for the next version to some out. Of course, this was during the Art Fleming days, and when I got my job at NBC in the Unit Managers Department, I was assigned to Jeopardy and met Art Fleming and Don Pardo. Fate was kind to me.

When I have nothing else to do I like to watch:
Building Off the Grid
Maine Cabin Masters

I follow a few reality shows when they're on:
Dancing with the Stars
Project Runway
America's Got Talent

Speaking of marathons, beckyliz, DH and I have been known to watch marathon sessions of Ink Masters.