World's Greatest Entertainer - S3.E17

Jeff just can't seem to do anything right --- he slams the door and the angel food cake in the oven droops; his model airplane has cockeyed wings; airplane glue gets on the carpet, so he bleaches it out! The family needs to build up his spirits, so when he does mediocre imitations of movie stars like James Cagney, Peter Lorre, and Edward G. Robinson, he gets all the family's praise. So he decides to enter the upcoming school talent show! Now what can Mary, Donna, and Alex do?