Digital Cable color problem

[IndyMLVC]

My parents live in CT with Comcast cable and their reception is horrible. It's frustrating me every single time I go home to their house. Is there anything I can do? Is there anything I should look for in a diagnostics setting?

Both TV's are hooked up using HDMI and look exactly the same from the digital cable: dull and washed out. Nothing is vibrant in the least. My dad watches a lot of baseball and football and all the games look like crap. The grass looks like a darker green than it should be.

However, when I put in a blu-ray, it looks phenomenal on both TV's on the same settings.

At this point, I'm convinced they should just switch to U-Verse or something else but figured I would (and should) check here first.

Here are some caps that I took this weekend. Everything looks to have too much red and is too dull and dark, no?