Tricky Dick - S3-E3
Audio problem: In the epilogue when Harry is singing for the garage band, before he takes the guitar and smashes it, you can see the guitar player is strumming, but only the bass guitar and drum parts are audible. (00:21:20)
Dick and the Other Guy (2) - S3-E23
Audio problem: When Liam is performing karaoke at the end of the episode, his mouth is not even moving for some of the lyrics, and there aren't any vocal tracks on the song, because only the instruments are heard when he abruptly stops singing to admonish the crowd for trying to leave during his performance.