I missed an episode (from the last season or next to last season I think) and I’m trying to track down which episode it was. I did catch the tail end of the episode in which Sheldon was pondering if he wanted to know something from the past that has remained a secret or otherwise hidden from him. He made the observation that once the memory is “out of the box” you can’t put it back in again (in other words you can’t forget it).
Can someone please let me know what season/episode that was ?
And no spoilers please 😀
Thank you !