ParagonPie
Well Known GateFan
I don't think this was on or shown abroad so maybe only us Brits could remember this. As the title would suggest guess what it does involve the invasion of earth, however there was some very creative aspects to this, namely the alien invaders, you see very little of them and their mission is horrifyingly simple. So trying to avoid absolutely huge spoilers (not too sure if people would like or hate me for that) it does the invasion in a very different manner, not with huge intergalactic space ships but something else, something that can't be shot down or engaged in the conventional sense.
The sad part is, this is only a mini series by the BBC and being the BBC never had the funding or industry capability to actually make a fully realized television series. With that said I would highly recommend this as it provides some interesting takes on aliens and how humans would combat an alien threat.