To help celebrate 50 years of the children's television show, the 16 stamps will feature all your favorites from the show, including Big Bird, Bert & Ernie, Elmo, Cookie Monster and Oscar the Grouch.

The Postal Service honors Sesame Street as one of the most influential and beloved children’s television shows. For the last 50 years, it has provided educational programming and entertainment for generations of children throughout the country and around the world. The stamp art features photographs of 16 Muppets from Sesame Street:
•    Big Bird
•    Ernie
•    Bert
•    Cookie Monster
•    Rosita
•    The Count
•    Oscar the Grouch
•    Abby Cadabby
•    Herry Monster
•    Julia
•    Guy Smil
•    Snuffleupagus
•    Elmo
•    Telly
•    Grover
•    Zoe
Telly Monster is a slightly neurotic young monster who lives at 1304 Sesame Street.
Early on, Telly was often paired with Oscar the Grouch, whom he tried to befriend against tremendous odds. The two were traveling companions in Follow That Bird, and Telly is a member of Oscar's fan club, the Grouchketeers. The two starred in two recurring sketches together: "Ask Oscar," which Telly introduced; and "Sneak Peek Previews." A more recent pairing together was in a sketch demonstrating words that begin with the letter B (Episode 4248).

In recent years, Telly has often been seen in the company of his good friend Baby Bear. Telly has a great love of triangles, and owns a pet hamster named Chuckie Sue. Telly has a favorite toy doll, which he named "Freddy." When Telly was a baby monster, his favorite toy was a stuffed animal horse which he named "Clark" before he got "Freddy." In the video Bedtime Stories & Songs, when Telly comes to Big Bird's nest for a sleepover, he brings a menagerie of different stuffed animals that almost overflow the entire nest. He also plays the bassoon, the tuba and, of course, the triangle. He also occasionally appears as a Monster on the Spot reporter. He also often jumps on a pogo stick, after Mr. Handford taught him how to in episode 3115.

Telly was initially conceived as a monster obsessed with watching television; his name is short for Television Monster. The character was first seen in Episode 1257, during the tenth season. This particular build of the puppet had antennas coming out of the top of his head, and his eyes would whirl around as he endlessly watched TV. An idea of making him a cyclops was dismissed early on.

His habit of watching television just inches away from the set was perceived as a bad example to children. Producers felt the character would serve as a negative role model for children by encouraging them to sit just as close to their own television screens, and no new material was produced for the character with some scenes featuring Telly even being removed from his origin episode before taping began.