If in your case you need the hardware to keep running while flashing the bios / loading firmware the UPS / battery backup is the way to go and then Opti and then wall socket.

Beyond that the only real benifit UPS has is the lightning protection.

I have actually bought a UPS with AVR for about $70 and 28min.s run time Belkin 550VA in june last year for the old lady's mac mini intel.

Grounding wire =
If you can get a metal type water pipe somewhere outside or in the roof and connect it to your ground wire and then up to the dish also works.
New houses might have the new pumpkin color / white clear plastic water pipes and you can only get a metal connection at a water tap or the likes = bit more tricky.

Try NOT to connect to the houses exsisting earth cables unless no other way too , as the electricity frequency might cause background noise or somthing like this and poorer signal quality not sure , might even transfer signals from other electric devices this way.

Also see the link below. I have found that the peg in the ground is cute most of the time but a metal type water pipe is my first choice to ground with as long as it has a good clean connection between pipe and cable / wire / rod.
Grounding your satellite dish and system

You can also try to run the lnb cable direclty to your recevier and see if it improves. Think one of the other post here someone mentioned that they had problems with TV / catv and the lnb signal joining duplexor ?? and had to bypass this.

Lnb to recevier , receiver to vcr , vcr + catv to tv.

Or join catv and Sat receiver OUT with a duplexor and then to vcr or tv.

Hope this helps.