[2] In the season's fifteenth episode, "The Comic Book Store Regeneration", Howard Wolowitz receives a phone call that his mother died while visiting family in Florida.

[3] In May 2014, CBS announced at its annual upfront presentation, that the series would begin its eighth season on Mondays, before returning to the Thursday slot it has held since 2010 on October 30, once the football games end.

[4] Production for the season was expected to begin on July 30, 2014, however the start was delayed due to the five main cast members' desire to renegotiate new contracts, with Johnny Galecki, Jim Parsons and Kaley Cuoco seeking approximately $1 million per episode, as well as more backend money.

[8] The following day, Helberg and Nayyar renegotiated their contracts, giving them a per-episode pay in the "mid six-figure range", up from around $100,000 per episode they each received in years prior.

Club also criticized the humor, writing that "A lot of the jokes are tired and the plotlines are standard sitcom material, but if it's worked for seven seasons, why switch it up now?