Continuity mistake: When John gets into his friend's van after he leaves the retirement home, they show his bald spot. While he gets out of the van, the spot completely disappears. When they show him from behind, walking towards the house in the next shot, the bald spot is back again.
Continuity mistake: When John is on Tyra, right after he gets up off the couch they show him and Maggie arguing in the kitchen. You see John hit Maggie's coffee out of her hand and we see some splash on her. After John leaves and Maggie sits in front of the camera on the couch, there is no sign of coffee anywhere on her.