I once read that Doctor McCoy said “He’s dead, Jim” lots of times through out the original series. Here is proof (according to someone geeky enough to count them), indicating he did say this phrase 22 times – an average of once every 3 or 4 episodes.
By the way, in case you don’t watch my Lailah videos (or haven’t noticed while watching), I’ve been teaching her this particular phrase, and she now says it “on cue” whenever we come across a dead bug, or similar situation. Lol