I recently rewatched Chuck and fully agree the first three seasons are very strong. I did see a few plot holes upon watching it straight through that I never caught when I watched it live.

There were a lot of shows like this around the same time.

Burn Notice had the overall arc of Michael resolving the Burn Notice but individual "criminal of the week" episodes.

Agents of Shield started as a "084 of the week" but I think around season 3 moved more toward a fully serialized show.

I think Burn Notice specifically, not necessarily started, but saw how people were starting to change how they watched shows. I believe USA Network even posted the shows the day after on their website for people to watch.

I'm okay with serialization so long as it's a good story.