JTS
"It depends what TV you want to watch. You will only receive SKY and all BBC/ITV/Ch4/Ch5 with a Sky Digi box"
Not strictly true
Only ch4 and ch5 from the 5 analogue terrestrial channels are coded by the Sky system on freesat and that will change before the digital (terrestrial) switch over is complete.
You can also pick your home ITV and BBC channels from the list if you want to keep up with home news/local programmes.
You would not get E4, More4, Five Life, Five US and some others however you will find thet you get Men& Motors, 4 movie channels and lots more that are all subscription channels on Sky for free.
Freeview (Terrestrial Digital), Freesat (satbox with no card) and FreeSatfromSky (Sky sat box with card) all have different line ups - it is confusing but I know from experience as we operate all 3 at home (in different rooms).
As a cheapest option with most channels I would use an analogue TV with a freesat suitcase as you will get ch4 and 5 on analogue in the UK until they go codefree on satellite.
If I was abroad the loss of a few channels would not worry me as I would rather enjoy the sun, sea, wine and company.
Angela - it sounds like the pudding bowl on the roof you have IS a self seeking satellite dish.