Thanks, but the number I'm looking for is of the form 7998005 (that's the ID for Sky 1).

From the '1052' ID, it's a reaasonable guess that it would be 7998052, but that's only a guess - and if you're adding the channel by hand, there's no way to correct if if you get it wrong.

If you've followed the MFS down to the point where you've seen the 1052, then it's 'ServerId' in the 'Station' structure.

Note that this is also the id in the slice - that's what the Tivo uses to index the data.