My new TV has network connectivity and browser for accessing a lot of services like youtube, netflix, picaasa etc. It can also access media on any networked drive. I don;t know if there is one available but a keyboard would be nice.
I'm pretty sure I've seen option for MLB but not one for NFL.
I have a remote that works with media center so i can use it keyboard and mouse free. But if i want to surf or do something else i have a wireless keyboard with a touchpad on the side... works pretty slick and its not very big. THen i've got the DVD burner in it to rip movies or fire off copies for a friend.
I even have a USB xbox360 controller hooked up and play video games on it as well.
Not complicated at all and it gets EVERYTHING done. Its my do-it-all machine!