Write a simple synopsis of the television show. This helps those who haven't seen the latest episode stay current and receive a little background before reading the actual review.
Watch previous episodes before writing the current review. It is important you stay abreast of the show, because often television shows work on a story ark, with information coming from previous episodes. If you don't know what happened on the show previously, it is extremely difficult to review the program.
Talk about the characters and their development. Characters in most television shows, especially when the show is first starting, go through developments that change how they act. This ranges from simply becoming more acquainted with their on-screen job to getting to know a love interest better.
Discuss if the show left you wanting more. It is the television program's aim to leave you wanting to see the next episode. If you didn't care for the program and don't mind skipping the next episode, the program obviously didn't do what it set out to do.
Talk about the age group for which the television show is aimed. Many shows are aimed at specific ages and it's important to let readers know this information. You wouldn't point senior citizens toward a reality show about teenagers, and most likely you aren't going to recommend programs about retirement life to young adults.