Family Ties - S1-E4
Visible crew/equipment: Near the end of the episode, right after Artie says to Dex "If you ever need a sidekick...", Dex responds "You will be my third call." Artie walks towards his car to leave, and a red tape mark can be seen at Dex's feet.
Continuity mistake: Detective Hoffman is in Grey's bar when Grey serves him a drink with a cherry on a skewer. The cherry alternates between being down in the drink or up leaning on the rim of the glass.