When a TV series comes to an end, it's always bittersweet. The cast, crew and fans are all saying goodbye to a chapter of their lives they devoted so much time to. But at least we have all the episodes to re-watch and cute pics to look back on and it's always so cool to see how much everyone has grown up and changed over the years. And that's exactly what we're doing today!
Click through the gallery to see what some of your fave TV says looked like when their shows first began and when the ended. Then tell us in the comments section below which of these casts is your all-time favorite!