This is significant because Tam was the first original character from the spinoff to appear in The Big Bang Theory.
With that in mind, the Big Bang Theory spinoff still has to acknowledge certain events established within its parent show before the finale.
Sheldon’s older best friend, Tam, was featured on and off throughout the first four seasons of Young Sheldon and will officially return in the final season, according to TVLine.
Young Sheldon’s seventh and final season on CBS is moving right along and, as that happens, it seems the show is aiming to tie up loose ends.