Director, A. (year, month day). Title of episode (Season no., Episode no.) [Description]. In A. Producer (Producer), Title of TV-show. Production company.
Example
Cendrowski, M. (Director). (2018, October 6). The conjugal configuration (Season 12, Episode 1) [TV-series episode]. In D. Goetsch, S. Holland, E. Kaplan, C. Lorre, S. Molaro, & B. Prady (Executive Producers), The big bang theory. Chuck Lorre Productions; Warner Bros. Television.
Parenthetical citation: (Cendrowski, 2018)
Narrative citation: Cendrowski (2018)
If the director and/or producer is unknown, other contributors (writers, hosts, etc.) might also be used.