But those dongles are cheap so you won't feel too burned. I wonder if you'll ask how I know.
I have a Panasonic Viera TX-P42G20B plasma TV with integral Freeview and Freesat tuners, plus a wireless LAN adaptor and broadband router modem. I want to have a second TV in a bedroom where there are no TV aerial outlets.
I see there are now websites - wwiTV, Live365, Rad.io, etc - providing free internet access to TV channels worldwide, including all of those found on Freesat / Freeview. So, how best to access these from a TV set?
A Smart TV suggests itself, except these don't seem to have the PC-type controls necessary to facilitate this. I would need either to connect my iMac - normally in my study - to my TV set - not the most practical solution - or manage things remotely from my study.
I see also there are now "Android 4 based HDMI dongles" which, plugged into a TV's HDMI port and accompanied by a small remote control, effectively convert an ordinary HDTV set into a Smart TV with integral controls to boot, enabling access to any internet channel, rather than just the few available through Panasonic's Viera offering.
I think I need one of these HDMI dongles and an ordinary, non-Smart TV for the bedroom, plus a second HDMI dongle, as a replacement for my existing LAN adaptor, to convert my existing, non-Smart TV set into a 'super-Smart' TV set.
What should I do?