OldShooter
Give me a museum and I'll fill it. (Picasso) Give me a forum ...
I think you'd be wise to find someone locally for a couple of reasons: First, IMO networks are relatively inexpensive to overdesign, but if they are underdesigned any needed upgrades are expensive. And even if your TV demands don't change, web sites are on a one-way trajectory towards larger and larger amounts of data. This puts increasing demands on both browsers and networks.... I'm hoping the installer can get me going or hopefully I can hire someone to make that happen..
Second, you will probably need a little help from time to time with a crashed computer, a network problem, or a virus. It's probably bBetter to have someone "on deck" that you know and trust than to have to go looking when things get a little desperate. While you're at it, have that person show you how to use cell phone hotspots, preparing for the inevitable day that your home wifi or your ISP goes down.