To ensure that your recorder is better able to get the guide on the correct channels you should update your account details on the IceTV website with the exact channel numbers that you can receive.

Note: You must have already setup your recorder including scanning or searching the channels.

To specify your exact channels:

1. On your recorder, open the guide screen or channel list.
2. Write down the channel names and numbers that are listed on the screen for all channels (scroll down to see all the channels).
3. For any channels that are simulcast on 2 or more channel numbers, like ABC1 on channels 2 and 21 or Seven on 7 and 71, you should pick one of the channel numbers and cross off the others. Example: If you prefer to watch ABC1 on channel 2 then keep ch2 on the list and cross off ch21.
4. Go to the IceTV website and Log In (if you have not already) using the link at the top of the screen.
5. Go to the My Account section using the link at the top of the screen (or click on the link in this line).
6. Ensure that in the My Account section that you are on the TV Guide tab.
7. For each of the channels going down the screen (under the column "Send to PVR as LCN") select the channel number that you wrote down from your recorder earlier (instead of leaving it set to "All"). 
8. For channels that are in the list that you do not actually receive on your PVR you should change these to "Disabled"; and ensure that the checkbox is unticked so that the channel does not show up on the IceTV website for you.
9. Once you have set them all to your specific channel numbers, click on Save Settings at the bottom of the screen.

You have now specified the exact channels that you will receive guide data. and recordings. for on your recorder. To force an update of the channel list currently stored in your recorder you will either need to clear out the guide cache or, if this is not an option, you will need to perform a reset to factory defaults and then re-setup your recorder.