My TV is on the first floor while my imac and router are on the second.

Wifi works with some things but not that well due to my slow ATT DSL speed. Hulu, an app built in to the Samsung, doesn't work. YouTube usually does if I watch something with a low resolution. But I'm putting off doing much more internet use on the TV until I'm more confident about security.

Otherwise the AppleTV idea sounds interesting. I don't know anything about it or Airplay. I read some about the Roku, but streaming is impractical with slow DSL speed.