We've have had Netflix for the past couple years and we love it, especially for catching up on tv series. Only frustration is some of the popular BR titles tend to be on wait due to their lower stock of BR titles. Regarding the streaming service, we've also had a Roku box for a few months and watch content on a 42" Panny plasma. Keep in mind all the streaming content is SD so don't expect any great visuals on your tv but its decent. They are working on HD streaming content though similar to other products like Vudu or Apple TV.
primary MBP Core i5 2010 | HR | OCZ 120GB SSD
gaming Core i5-2500K @ 4.1GHz w/ CM Hyper212+ | MSI N560GTX-Ti TF II/OC | MSI P67A-GD55 | Silverstone FT02 | X360 250GB | Kinect
htpc IONITX-A-U | 2GB | M350 | XBMC Linux | SABnzbd, sickbeard, couchpotato | NAS Synology DS411J | 4TB
hometheater KURO PDP-5020 | HK AVR2600 | Definitive BP2006TL(2) & CLR2300 | Polk R50(2) | Sony S470 | HarmonyOne