Redownloading episodes for archiving

Sonarr version (exact version): 3.0.1.527
Mono version (if Sonarr is not running on Windows):
OS: Windows 10

Currently i am downloading old episodes in 720p and new one in 1080p but i allways forget to redownload episodes in lower quality. The reason i am doing this is becasue my 2TB drive for only tv series is allmost full and i need more space and since storage is the proablem am i am willing to redownload episodes in 1080p if i will rewatch the series. i currently have a 500 mbps connection so i can redownload stuff quickly.

So i am wondering if there is a way for me to download episodes in high quality (couple of GB per episode) and then redownload it 2-4 weeks later in 720p

There isn’t a way to achieve what you’re looking for based on time, but you could have Sonarr “downgrade” to Bluray 720p if/when those releases are available by allowing Bluray 720p in the profile not allowing Bluray 1080p.