Warning: Contains SPOILERS for Young Sheldon season 5, episode 4.
CBS resolves Young Sheldon‘s oldest plot hole with The Big Bang Theory. Premiering in 2017, the prequel spin-off tackles Sheldon Cooper’s (Jim Parsons) life as a boy when he lived in Texas with his family. But despite existing in the same reality, Young Sheldon has created a lot of plot inconsistencies with its parent series which is often a source of frustration for fans.
With four episodes in, Young Sheldon season 5’s narrative has slowly shifted its focus to the Cooper kids. Georgie’s (Montana Jordan) decision to quit school and start working full-time forced George (Lance Barber) to kick him out of the house. Mary (Zoe Perry), wouldn’t let that happen permanently, so they decided on a middle ground. Georgie would start paying for rent and utilities, and he would also move out of his room into the garage. Missy (Raegan Revord) took this as an opportunity to have her own bedroom in Young Sheldon season 5, episode 4 titled “Pish Posh and a Secret Back Room.” After checking in with her parents and Sheldon (Iain Armitage), she finally got what she wanted — to have her own space.
As Missy explained, she and Sheldon are growing older, and they can’t share a bedroom forever since they would eventually need their privacy. The siblings getting separate spaces also effectively resolves Young Sheldon‘s oldest plot hole. In The Big Bang Theory season 1, episode 15, “The Porkchop Interdeterminancy,” Missy visited her brother in Pasadena and shared the story about when they were kids, Sheldon turned her Easy-Bake Oven into a powerful furnace in an effort to keep her out of his room. But, as seen in the spin-0ff, the twins have shared a bedroom for years; Sheldon even mentioned they’ve been doing it for 10 years, which is why he’s having a hard time adjusting to her moving out. Now that Missy has taken over Georgie’s old bedroom, this particular inconsistency has been rectified.
Granted that in The Big Bang Theory, Missy did say that the Easy-Bake Oven incident happened when they were eight-years-old, it’s possible that she just had their ages wrong. After all, the snafu also led to the burning of her eyebrows, forcing her to draw them until they grew back. Considering how young she supposedly was when this went down, it doesn’t make sense that Mary or George would allow her to use make-up on herself that early. Now that she’s around 11 years old, this scenario is much more plausible since she’s essentially a teen. It’s a much easier plot hole to explain than Sheldon and Missy continuously sharing a bedroom which is a direct contradiction to what was said in The Big Bang Theory. In any case, splitting the twins’ sleeping arrangements makes sense at this point in Young Sheldon season 5’s narrative, especially if they want to realistically depict their lives as growing kids.
It’s no secret that Young Sheldon often gets criticized for its lax approach to established canon. However, this is a good way to resolve a lingering The Big Bang Theory plot hole without making such a big fuss out of the issue. It’s curious if this was intentional on CBS’ part or it just so happened that this was really the trajectory of the story that they are telling. Regardless, viewers would be thrilled that the spin-off is finally taking continuity seriously.