Family Ties - S2-E21
Continuity mistake: When Leo is in the office with Roger and hands him the thing from the gift basket, his right elbow is on the desk. When Roger knocks it out of his hand, his elbow is off the table, then back on.
Lethal Weapon (2016)
1 continuity mistake in Family Ties - chronological order
Starring: Damon Wayans, Keesha Sharp, Johnathan Fernandez, Kevin Rahm
Continuity mistake: When Riggs is hanging from the tree, his hands are tied behind his back. When he falls and lands on his back, his hands are still behind his back. In the next shot of him, his hands are now tied in front of his body, even though he didn't have time to do anything to get his hands there.
Flight Risk - S2-E4
Trivia: In this episode, Dan Cooper hijacks and robs the passengers, then jumps out of the plane mid-flight with over $1 million of goods. In 1971, a man identifying himself as "Dan Cooper" (later misidentified by the media as "D.B. Cooper", which ended up being the more popularised epithet) hijacked a plane and jumped out of the plane in mid-flight with over $200K (equivalent to over $1 million in 2017).