However, during the episode "Celebration Day," their tassels say 1979. Since the finale of That '70s Show sees the group celebrate the arrival of 1980, 1978 makes a bit more sense. While the gang ...

And apparently that was a tradition that they did for all eight seasons of '70s ... Intense Show (Exclusive) Brandon Sklenar Gets 'Emotional' Just 'Thinking About' the 1923 Season 2 Finale ...