Hi Lyndel,
I should have been a bit more specific. The file I grabbed is for 154 channels and 2 weeks worth of data. You can change the settings for the grabber to lets say 10 channels and like 2 days. The point is to just have a guide for today and maybe tomorrow so not to change to the tvguide on your tv to see whats playing on the other channels. So the xml file I grabbed was 14Mb so it'll be a lot less for 10-20 channels and just 2 days. I think the pronto could handle that!
I think this clarifies it more what I'm after.
I just ran the script again for 1 channel and 2 weeks of data and it's about 170k.