I believe this is from this year's show, which ends later today.

Statler and Waldorf of course are two geriatric cranks who've been jeering the Muppet Show since 1975, safely ensconced in their upper-level box seats. They were named after two landmark NYC hotels, the Statler Hilton and the Waldorf-Astoria.

https://mediaproxy.tvtropes.org/width/1200/https://static.tvtropes.org/pmwiki/pub/images/statler_waldorf_1.jpg

You can probably approximate the piece's overall dimensions from this closeup:

Credit to builder Caleb Sheard. Here's a video interview in which you can see all the great work he put in to the lighting:

https://www.youtube.com/watch?v=kNKAjIgVpks