What year did Tim Couch come out?
Tim Couch's rookie season in the NFL was 1999.
It doesn't seem to be, but a couch potato is. That is someone who is lazy, particularly someone who mostly only stays on a couch, eats, and watches television. The term seems to come from being on a couch, eating potato chips, and being in what seems like a vegetative state. A related idiom is "veg out."
There are a few benefits to sofa covers. They protect your original fabric from stains, wrinkles, and pet hair. The also come in handy when you are redecorating and you need a new couch to match. Instead of buying a new couch you could just buy a couch cover that matches. And they are very affordable.