When the marshall is in his office, there is a bulletin board with wanted posters on it. It appears they didn't have enough wanted posters of different people as the poster for Tyler McKay was used twice.
At the end if the show, when Matt knocks Tiller out, his pistol in lying in the street. Boone picks it up. Just the same it is gone in the next scene.
Antelope Stew? At the beginning, Chester wants to have the special, antelope stew. Antelope are not indigenous to North America.