I watched the marathon last night and saw them make a big deal about Dennis’ weight loss in the season 4 premiere. They then skipped to a midseason 4 episode and it looked like he had put some of the weight back on, and then in the season 5 episodes, he was back to his normal size. Maybe it would have been better for them not to address it at all, because it must have been difficult for the actor to go through that publicly.

I haven't watched the ones that I DVRd yet, but one of the episodes I remember most is when he had lost all that weight and they highlighted it in the show. From what I remember he was wearing a big shirt and took it off and had on another shirt and pants underneath. That might be the one you're referring to. But I agree, they really should have shown the episodes in order instead of just random ones.
Hallmark shows Golden Girls and Frasier every night and even they show those in order. If Antenna TV has the rights to the show, they should have all of them and I don't think it would be that hard to show them in order.

I haven't watched the ones that I DVRd yet, but one of the episodes I remember most is when he had lost all that weight and they highlighted it in the show. From what I remember he was wearing a big shirt and took it off and had on another shirt and pants underneath. That might be the one you're referring to. But I agree, they really should have shown the episodes in order instead of just random ones.
Hallmark shows Golden Girls and Frasier every night and even they show those in order. If Antenna TV has the rights to the show, they should have all of them and I don't think it would be that hard to show them in order.

I've watched head of the class back then. Love this show. I'm watching on roku and I'm on season 4, and I wondered why they are showing episodes that have Maria, Janice, Jawaharlal in them when they left in season 3. I'm so confused. I don't remember them doing that back then.

For some reason, two episodes, filmed for the prior season(s), aired during the fourth season. When originally shown, they were treated as flashbacks (with new intro scenes filmed), though they were restored to their original seasons for home video and streaming.

The HOTC fan Instagram account recently posted the original-broadcast versions.