It’s almost impossible to present an accurate representation of incest on television and not trigger someone. It’s not a subject for the faint of heart, but writers keep trying to get the concept out there. Some shows are able to make the topic work in better ways than others, and the successful shows aren’t always the ones you'd think. Some dramatic series completely drop the ball, while a few comedy programs manage to accurately portray such a relationship.
The list of film and television shows that have delved into these types of taboo relationships is small, but it’s interesting to see which programs have put inbreeding on television in a somewhat serious manner.
In the Emmy-winning episode "Roswell That Ends Well," the Planet Express crew accidentally traveled back in time while watching a supernova. Instead of sitting tight in 1947 until they can fix their ship and go home, they check out the sights of Roswell and Fry ends up sleeping with someone who turns out to be his grandmother. While his self-grandfatherhood turns out to be important later in the series, that doesn't make it any less unsettling.
One of the big running gags on the aggressively popular, family-friendly TV show The Big Bang Theory is that Howard's relationship with his mother borders on the illicit. Basically, they act like an old married couple.
In the late-season episode "To Thine Own Self Be Blue... and Gold," Carlton and Hilary both get into online dating to try to find the love of their lives. When they seem to find suitable partners, they find out that they've matched with each other. Oh, the humanity.
When George gets cut off by his parents, he goes to extremes in order to make them pry into his life. Rather than act like a human being, he does exactly what any character on Seinfeld would do and he goes on a date with his cousin Rhisa. Shockingly, it doesn't work out.