@TPaisley I can tell you my least favourite episode. The one where have the screen was covered by twitter.LOL.
In all honesty, I thought it was an interesting experiment. Of course I've seen the episode several times, so the intrusion into the show didn't bother me at all. For those tuning into this episode, or the show for the very first time, I can see how it would be distracting. I think the level of outrage expressed in the comments is a little over the top, but such is the world of the anonymous internet. (FYI, FringeTelevision.com is a fan-site and is not officially connected to Fringe, Fox, or WB... i.e. it's not our fault! ;)
UPDATE: Joe Early, Fox's vice president of marketing and communications, noted that ... depending on how fans respond, the network might (or might not) add tweets to future repeats. "It would never be done, obviously, on an original episode," Early said.
Please don't worry! As far as I know, this was officially a one time event. Fox press releases only mentioned tonight's episode of Fringe, and tomorrow's episode of Glee. The Fringe season one finale next week should be Twitter-free, and certainly all of the new episodes will be as well.
If you would like to watch tonight's episode tweet-free, it is available for free online at Fox.com/FOD, Hulu.com/Fringe, or even in the Fringe Epsiodes section.