Dennis the Menace is a sitcom that aired on CBS.
The show follows the lives of the Mitchell family – Henry, Alice, and their only child, Dennis, an energetic, trouble-prone, mischievous, but well-meaning boy, who often tangles first with his peace-and-quiet-loving neighbor, George Wilson, a retired salesman, and later with George's brother John, a writer.
While the series was based on the Dennis the Menace comic strip, there are differences between the two. On the sitcom and in the comics, Dennis is basically a good well-intentioned boy who always was trying to help people, but wound up making situations worse - often at Mr. Wilson's expense. In early episodes of the first season, far more disasters happened as a result of his actions than in later episodes. The character of Dennis was slightly toned down by the sixth or seventh episode. Instead of Dennis' dog Ruff, there was a smaller Cairn Terrier (per the episode "Miss Cathcart's Friend") named Fremont which belonged to George and Martha Wilson. He did not appear during the fourth season, when John and Eloise Wilson moved in to 625 Elm Street.