Takes place in flashback when Jimmy is 18. Up until he is about 25, he believes that he was allergic to fruit and yet in a scene in the grocery store office, he is eating a banana.
In the "Flashback" scene, the grocery store is Howdy's but wasn't changed to Howdy's from Jon's until the second episode aired after Jimmy had already gotten Hope.
After Maw-Maw blows out her candles they go from not being totally blown out, to blown out, and then back to not all blown out.
During the flashback Shelly has a clean white tooth but earlier in the year it was still brown and dead.