I can only share what my work flow was, can’t comment on good or bad practice.
Whatever can go wrong, usually does and I try to stay prepared for it.
Each episode had it’ s own project folder with in the “episodes” folder. Lots of duplicate and reused audio in each episodes audio folder, etc etc. Once an episode passed network QC and was considered finished. I would remove unused media and delete it from that particular episode. and never have to worry about messing up something from another episode. Also, this way, my archive is as small as it can be and totally organized. Episode 4 for example contains exactly what is needed, nothing more, nothing less. If I need to revisit it and quickly turn around a hot fix, I won’t take forever to copy a whole season over to the work machines.
When I got materials from editorial, I’d crack the aaf and get it all lined up in my show template. At that point I’d do an initial back up of that episode. After that I do incremental back ups to a clone project drives anytime I was at a stopping point… like lunch, end of day, etc. Especially with tv, you get a lot done in just a couple hours. And the deadline will not change just because you’re having a session issue. This saved me twice. So best that your back ups are only a couple hours old.
Another technique when creating a show specific template is to save to first episode to a new folder, copying everything over… you can total rip it apart and not have to worry
An easy way to get rid of automation is to open the automation panel and in the drop down select - delete all automation in project. You can also do this for selected tracks including specific automation lanes that you choose.