In the Big Bang Theory finale Penny is wearing the same shirt she wore in the pilot episode. : r/TVDetails
The Big Bang Theory finale is praised for 'the perfect ending
The Big Bang Theory ending revealed: Star reveals how series will end?, TV & Radio, Showbiz & TV
Big Bang Theory' showrunner Steve Holland on ending the series: 'Finales are hard' - Los Angeles Times
The Big Bang Theory” Series Finale Is Two-Parter, Airing One Night – TVLine
The Big Bang Theory' Ending With Season 12 — Final 'Epic' Series Finale – TVLine
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