Here's a TivoWeb module to manually add a channel to your lineup.
If one of your "favourite" channels is no longer in your TiVo lineup then you can add it. E.g. if it has been deleted as part of the AltEPG purge on channels without guide data.
Delete the ".txt" from the end of the filename (so it's just called "addchannel.itcl")
Copy (e.g. by FTP) the file into the "modules" directory in the relevant TivoWeb directory on your TiVo, and then restart TivoWeb.
Click on "Manual Add Channel" and follow the on-screen instructions.
1: Select the source to which you wish to add the channel (e.g. for a Freeview channel select 'Freeview'!)
2: Enter the channel you want to add (max 3 digits)(e.g. 228)
3: Enter a callsign (e.g. MENMOVI)
4: Enter a description for the channel (e.g. Men & Movies)
5: You probably don't need to change the server prefix unless someone tells you otherwise!
You can then amend your channel preferences to mark this channel as a favourite, so you can then channel surf it and also select it for manual recordings.
Tested under TivoWeb 1.9.4 and TivoWebPlus 2.1.b3
# 08 Mar2012 - v0.0.1 - initial public release (2 downloads)
# 09 Mar2012 - v0.0.2 - minor revision to instructions (1 downloads)
# 09 Mar2012 - v0.1.0 - cosmetic changes
# . . . . . . . . . . . . . . . add check for duplicate station or channel
# . . . . . . . . . . . . . . . remove requirement for TW reload
# . . . . . . . . . . . . . . . added a delete function (experimental) (4 downloads)
# 12 Mar 2012 - v0.1.1 - option to add to favourite channels