I want to start by saying that I do my best not to ask much and I try to be helpful to others but I have a lot to learn and sometimes its the dumb stuff that gets me.. Anyway, I was up on the roof and...
I get what you're asking regarding the fridge vent lid. That caulk actually pulls loose pretty easily, as it does not adhere well to the plastic. Just go around the edges of caulk with small screw driver, or dental pick. Now twist and pull, should come out in one piece.
Are you maybe talking about strapping down your actual tv set? Lots of different set ups, so hard to say without a picture. Maybe too late, but you should have anticipated needing kids when you get older! :)