Your TV should be able to network mount a NFS/Windows File Share. Store your movies, music, and data there, and mount the server via your laptop and tv. Most modern Wireless routers have a USB port that can be shared as a fileshare. You can use that, or simply have a low powered computer that’s always on attached as the server.
That comment really hit me. Back when I was a kid, I used to repair neighborhood TVs. The black and white ones with tubes.
We've come a long way...
/johnny