I watched all of Season 1 of Alice and part of season 2 up to episode 2x15. The credits in the beginning were all the same and coincided with the episodes.
Suddenly at the beginning of episode 2x16, the opening credits were odd...Tommy was at least two years older than he is in the episodes, and scenes were in it that hadn't happened yet in the series. it was just odd to me.
It was also hard to understand what words linda lavin was singing.