Hi all - promised to post an update about using WiDi in case of interest to anyone who wants a free-to-use streaming alternative to satellite TV.
We're at the Gers/Landes border (near Aire Sur L'Adour), have a 1.0/1.1m dish and both Humax HDR and an old SD Skybox. We generally get all channels most of the time, but must be at the margin because we lose HD and some of the harder SD channels when the weather/cloud-cover is bad.
Because of this, I wanted an alternative source to get BBC/ITV/4/5 etc for free. Like most people, I don't like watching TV on a laptop, don't have a dedicated PC hooked up to the TV and don't like having cables snaking across the lounge floor. So I wanted a wireless solution to mirror what is on my laptop on our telly.
I'm a Google Chrome user, so the first thing I did was to install the Media Hint extension for Chrome, which takes about a minute to do. It's free to install and, if you leave it switched 'on' (which has no impact whatsoever on bandwidth) you don't need to subscribe. If Media Hint doesn't work for you, try Hola instead. With Media Hint installed, BBC iPlayer. ITV Player, 4OD etc all work perfectly, as do Netflix US, Fox, Pandora and so on.
The only expense I have gone to is the purchase of a WiDi receiver for my telly. I went for a Netgear 'Push2TV' PTV3000 - it cost about £40 on Amazon, is about half the size of a deck of playing cards and plugs into a HDMI port on your telly.
I checked that my laptop was WiDi-compatible beforehand, by going to the Intel WiDi website and downloading and installing the latest WiDi driver.
With iPlayer/whatever running fullscreen on my laptop, I have three keystrokes to 'project' it to my telly.
How good is it? The image is not as crisp as HD TV channels, but is at least as crisp as SD channels. BBC iPlayer, ITV Player and other live TV plays fluidly, Netflix can be a bit jerky if the camera is panning, but is good otherwise.
My recommendation - this works for using iPlayer etc for live and catchup TV with little compromise to viewing quality. It's free to use, has a small one-off cost for the WiDi receiver. It's very easy to use and is a neat, wireless solution. It's not as good or convenient as regular TV, but it's probably as good as many of the subscription services that people have mentioned earlier in this thread. Make sure your laptop is WiDi compatible before ordering a WiDi receiver. WiDi receivers are (usually) also capable of receiving a signal from Android devices using Miracast, but I haven't tried that, so can't comment.