Not sure if this 100% qualifies, but Psych (where the main character is hyper observant and passes it off to the police and others as being psychic) made several digs at the Mentalist, another show that was on at the same time. In the Mentalist, Simon Baker's character was also a hyper observant detective who had started out by posing as a psychic. Here's a fun supercut of all of the jokes they made.