Watch Episodes - United States 
Episodes of The Big Bang Theory can be bought for download from iTunes. Also available in HD.
DVDs & Blu-rays Region 1/A
| Season | Released | DVD | Blu-ray |
|---|---|---|---|
| Season 1 | 02 Sep, 2008 | Buy from Amazon.com | Buy from Amazon.com |
| Season 2 | 15 Sep, 2009 | Buy from Amazon.com | Buy from Amazon.com |
| Season 3 | 14 Sep, 2010 | Buy from Amazon.com | Buy from Amazon.com |
| Season 4 | 13 Sep, 2011 | Buy from Amazon.com | Buy from Amazon.com |
| Season 5 | 11 Sep, 2012 | Buy from Amazon.com | Buy from Amazon.com |
| Season 6 | 10 Sep, 2013 | Buy from Amazon.com | Buy from Amazon.com |
| Season 7 | 16 Sep, 2014 | Buy from Amazon.com | Buy from Amazon.com |
| Season 8 | 15 Sep, 2015 | Buy from Amazon.com | Buy from Amazon.com |
| Season 9 | 13 Sep, 2016 | Buy from Amazon.com | Buy from Amazon.com |
| Season 10 | 12 Sep, 2017 | Buy from Amazon.com | Buy from Amazon.com |
| Season 11 | 11 Sep, 2018 | Buy from Amazon.com | Buy from Amazon.com |
| Season 12 | 12 Nov, 2019 | Buy from Amazon.com | Buy from Amazon.com |