The two moms from `` Big Bang Theory '' guest star this week . In the episode, titled "The One With All Of The Thanksgivings," they are joined by their daughter and her husband to discuss what it means for them as parents when a family member is diagnosed with cancer. Comedy `` Younger '' is gaining big buzz .
The two moms from `` Big Bang Theory '' guest star this week . `` Backstrom , '' `` Blue Bloods '' are among the week 's season finales . Comedy `` Younger '' is gaining big buzz .