"Safety Second" has a calender that says "July Fourth", and the episode was made on 7/4/1950! Awesomeness! Oh man! I just revieled one of the dates! Oh, well. "Jerry and the Lion" was made in 5/8/1950. I wish I had more... you can watch a video if you want to. Read The Original Adventures Of Tom and Jerry:Season 2, episode 12.