^Yes, be wary of the refresh rates issue. It essentially "guesses" how inbetween frames would look, so - in short - if a film was originally created at the standard 23.976 (somebody correct me on that if I'm incorrect), when shown on a TV player with a refresh rate of 120/240/etc. it will look like it was filmed on video. Star Wars moves like an episode of a sitcom!
I personally adore this feature when playing old video games that have a tendency to lag, but with movies it tends to be really jarring. If you're asking us about what kind of TV to get then it would probably bother you; make sure you can get one that turns off that feature, or doesn't have it at all.