There is a certain feeling you get at the end of every episode of "Dexter"-- basically you feel the need to talk to someone about the crazy events that happened in the episode or just discuss predictions for week. So if you decide to dedicate a portion of your summer watching the first 6 seasons, be sure to watch with someone or know someone that has seen it before. "Dexter" is an amazing show and absolutely worth catching up on. Every season thus far is available on DVD and season 6 is available on showtimeanytime.com. Season 7 premieres at 9p.m. on Sunday, September 30 on Showtime.