Movies and animations
The Big Bang Theory
The Big Bang Theory is an American sitcom, which was premiered on CBS in 2007.
The show is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper, both physicists; Penny, a waitress and aspiring actress who lives across the hall; and Leonard and Sheldon's equally geeky and socially awkward friends and co-workers, mechanical engineer Howard Wolowitz and astrophysicist Raj Koothrappali. The geekiness and intellect of the four guys is contrasted for comic effect with Penny's social skills and common sense.
In season 4 episode 11 Shelodon is wearing a blue t-shirt with penrose triangles on it. Screenshots from the episode are presented below.
Along with the previous T-shirt Sheldon also wear another ones with other impossible figures.