July 5, 2022 The Seinfeld show first aired on TV on this day in 1989. Who do you think was the best supporting character?Frank Costanza (27.27%)Newman (36.36%)Kenny Bania (9.09%)J Peterman (0.00%)Uncle Leo (9.09%)Jackie Chiles (0.00%)David Puddy (9.09%)Other (9.09%)Previous Polls