Not really any effort at all, just finding where the right signal was. It wasn't like I broke a sweat.
As far as the expense for High Def? It's not really that expensive anymore and I feel well worth it. If you watch football, or any program or event for that matter, it's a whole different viewing experience. I have become spoiled and find myself watching programming that I never would have watched before simply because it looks so much better then regular tv.
In the not to distant future all programming will be in High Def.