Not sure if you would class my elderly Humax Freesat receiver/recorder as a computer (though it does have Linux under the bonnet).
Anyway I finally got round to earning some brownie points with the wife by replacing the apparently annoying (to her) trailing Cat 5 cable that enabled it to talk to my router with a Vonets wifi dongle (having tried, and failed, to work out if I could use one of my growing collection of superseded BT hubs as a bridge).
Happily no Linux drivers were required - the dongle just plugs into the RJ45 and does its magic stuff, with the Freesat box being none the wiser. The dongle did, however, need to be plugged into an ancient laptop (none of my newer ones have an Ethernet jack) so that I could configure the SSID and password for the router.
Job done, now I can change channel, set recordings, etc from my laptop. More to the point, I can now play my recordings on the PC while the TV is being used by SWMBO for important stuff like Midsomer Murders and Poirot.