Remastered Blu-ray editions of Star Trek: The Next Generation are slowly making their way into the wild, with the first two seasons already available. With the release of the second season late last year came a nice surprise -- 10 minutes of completely new and hilarious bloopers... mostly of Worf (Michael Dorn).
If you're a purist, you might not want to watch this compilation of out-takes, lest it somehow dilute your opinion of the show. For everyone else, it's a fascinating look behind the scenes of one of television's most influential science fictions series.
I for one completely lost it when Riker (Jonathan Frakes) takes a tumble and when Picard (Patrick Stewart) confuses his Engages with his Energises, but it's all excellent stuff. I'd go so far as to say the best blooper reel ever put together for The Next Generation.