I have a similar experience, but with movies & TV. My friend is an actor, so he's told me all about the process of making them. As a result, I now wonder about the making of something (e.g., counting extras, wondering if something is CGI), rather than becoming immersed in the story. One major exception is The West Wing. The characters and stories are so good, the only time I wonder about the making of that show is when I notice how long the camera stays on the actors as they walk/talk (usually quickly) inside the set without a cut. They walk through hallways, past cubicles, around corners, into rooms, out the other side, etc, passing any number of extras walking, talking on phones, making photocopies, chatting, delivering mail, etc., all of it perfectly timed.