The Bert and Ernie Show was a stage show that starred the two Muppet pals and two Honkers. The show opened in 1983, the year when all four characters debuted at Sesame Place.
Image from Flickr
The show was on a stage that was setup in front of Mr. Hooper's Emporium.
Image from Google Street Views
Today, benches and potted trees occupy that space.