The Star Trek Discovery 2021 Wall Calendar is based on the hit series streaming on CBS All Access. This collectible wall calendar celebrates the highly popular series, Star Trek Discovery. Star Trek(TM) Discovery boldly introduces all-new characters, conflicts, and adventures. The 2021 Wall Calendar will feature the cast and images from the first and second season.About the Author: CBS is an American commercial broadcast television and radio network that is the flagship property of the CBS Entertainment Group division of Viacom CBS.