Only download subscription videos after a date

In short, this is what I believe would of been a better option for the youtube subsciprtion.

When a user adds the YouTube channel link, rather than searching all the channels video and downloading everything. Give the option to download them or just subscribe and start downloading new videos.

I don't want to add a channel and be forced to download all their library, some channels are 100s if not 1000s of videos.