Detailed Instructions: Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.
Q: According to A&E 's Biography , Bert and Ernie were virtually the only Muppets to appear in the Sesame Street pilot episode , which was screen tested to a number of families in July 1969 . Their brief appearance was the only part of the pilot that tested well , so it was decided that not only should Muppet characters be the '' stars '' of the show , but would also interact with the human characters , something that was not done in the pilot .
A:
Bert and Ernie