ssetta, do you happen to remember the names and episode numbers of these Sesame Street episodes?
Both of these episodes were aired from the 1993-94 season, but were reruns of episodes from the 1991-92 seasons:
1. Gordon announces the sponsors: "Sesame Street was brought to you today by the letters U, as in umbrella, and Z as in zebra; and by the number 1 as in 1 person standing here saying good-bye." Then the Count, off-screen, tells Gordon he can use his imagination and count up to 9 people saying good-bye; then he, not Gordon, says "Sesame Street is a production of the Children's Television Workshop. Ah-ah-ah!"
2. This other episode ended with Big Bird and kids announcing the sponsors F, I and 5. Then the muppet with a bird on his head said some things to Big Bird and eventually said "Sesame Street is a production of the Children's Television Workshop," but before that he said that the bird on his head was going to say that. Before the closing harmonica theme ends, the last word Big Bird said was "Ridiculous."