Thanks to everyonefor all the help.
I guess I have an "Americanized" box, as it seems to save and use any new TP's I edit in or get from a scan, even after a reboot.
I did get a great tip on working around TP's that are very similar - and particularly for when you don't have many working TP's, like when getting started on a bird
1. If you use this, DO NOT DELETE ALL OF THE TP'S FROM A SATELLITE !!! .
Well maybe not quite.
first if you have not already done so (in the sticky area above) download the Az Users Guide and the Question & Answer Guide which are 2 different pdf files that answer most of the questions on the az receiver.
To have a North Americanized receiver that means you have only the Western Satellites in the box.
You are correct in that you never delete every TP from a satellite. Always leave one in there until you scan in one proper channel then get rid of the one that was left over from before. This gives you a clean slate and yes you will find you can scan in more channels then before as now your receiver is cleaned out of the old stuff and can scan in channels based on your setup.
To North Americanize your receiver on your own it can take several hours.
If you follow the links in the Az Users Guide there is a place where you can download a zipped file which contains a North Americanized Sat/channel list which will save you the time. You will then have to set your DiSEqC settings and there is a link that provides you with some basic programs that work with the AzBox so you can edit channels and also a program called ACC which is a great program that sends the files to your Azbox that also sets the sat list in your backup directory as well so you have less chance of having your AzBox channel list becoming corrupted.
All this is done so you can spend more time watching FTA then fiddling at every turn with the AzBox.
The newer firmware 0.9.5308 has come a long way in getting rid of old outdated information in the Satellite/Channel list and for most people it should suit them fine. However, I have found here that deleting all but 1 tp was again necessary as our system setups are not all the same.
Anyone using a firmware before 0.9.5308 will eventually have a corrupted channel list due to one satellite having no transponders listed in it.
My next sat list I am working on is experimenting with having a H & V polarity Satellite's listed in the receiver. So far it appears to work fine on a few sats that have Freq's that are part time and close in numbers that every channel can be put in the receiver without a problem. Creating these lists and adding the channels, and having it done correctly, can take an entire day to finish.