Khan loves Neil Patrick Harris.
We were watching Dr. Horrible's Sing-Along Blog for the first time yesterday (good, but I don't know why people say it's so very funny...it was slightly funny but mostly I thought it was terribly sad) and he was riveted any time NPH was on screen. He stared and smiled and cooed at him. Didn't matter if he was singing or acting or what. He didn't really pay attention to the other actors.
Too bad he goes to bed before How I Met Your Mother is on. And he's too young for Undercover Brother...maybe when he turns 6.