Is there a DVD + digital download option? That way he can have a physical gift plus the ease of digital!

I’m on mobile so I can’t search well right now but for instance I found this: https://www.amazon.com/Big-Bang-Theory-Digital-Download/dp/B0177XV1R8 that comes with the physical discs and a download. Added benefit being that if the internet is out you have something comforting to watch.