The Big Bang Theory
Despite the third and fourth seasons receiving Blu-ray releases with their DVD releases, the first and second seasons were only available on DVD when they were released. Warner Bros. has then released the first two seasons on Blu-ray/DVD combo packs with UltraViolet downloads on July 10, 2012. All of the episodes from seasons 1 & 2 on Blu-ray received newly edited surround-sound audio, with the first season including a never-before-seen gag reel, which was not included during the initial first season DVD release.