How do I rescan channels W7 Media Center?

I have dozens and dozens of old analog cable channels that Media Center remembers.  These channels no longer work since provider went digital. Instead of deleting these one by one (the only sucky option I see), I'd like to start over fresh.  If I run a scan, it catches new cable channels, but leaves the old ones in the guide however.
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pcrequestAsked:
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jschristian44Commented:
you have to go into settings.  it will allow you to select them all at once and delete them all at once.  if you need help just ask.
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pcrequestAuthor Commented:
I see where to select them, but not to delete them.  
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jschristian44Commented:
well, when you check them all, you just click delete some place on that page.
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jschristian44Commented:
send me a screenshot, its been a while since i did it.
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pcrequestAuthor Commented:
task
settings
guide
edit channels

mce.PNG
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jschristian44Commented:
did you auto select all of those?  i think just push clear all, then click save.  if that does not work and they are still there, click restore default.  one of those should work.  if they don't get back to me.
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pcrequestAuthor Commented:
tried all those.  Still can't delete channels and start over.

auto select are already selected.  clear all, just unchecks all items.  if i save, then nothing's in the guide.  if i rescan after that, all the bad channels are back.  Isn't there a way to start over besides reinstalling Windows?
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jschristian44Commented:
wait, i thought you just wanted to clear all the channels that you have in there right now without doing them one by one?  when you save and nothings in the guide, isnt that the solution?  or are you just trying to delete the ones you dont want and keep the ones you do want?  do you only want the HD channels and trying to get rid of the analog ones?  to do this, you need to go to set up tv signal.  this will rescan your tv tuner card and it will allow you to select digital or analog.  if it is a dual card, then it will automatically put both of them together.  your best bet would be to clear them all out, and add the hd channels manually.  just google your digital cable provider for a guide channel list.  you can enter each 100 channels which will be a lot shorter than deleting all the analog channels out of it.  but make sure you cant just select the digital option when you set up your tv signal.
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pcrequestAuthor Commented:
if i save with all cleared, then run a new scan, the old analog channels are still there and selected.  I just want any way to delete all channels and do a fresh scan.

If I save with all cleared, then go back to that screen, they are still remembered, but just unchecked.

I ended up clearing all, then checking the dozen or so I actually tune into.  I'd still like to know how to delete channels.
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jschristian44Commented:
well like i said you need to go under settings, setup tv signal.  this will erase all the channels that are there.  if you just want the HD channels, choose the HD provider, its usually on the bottom.  the top most one will do only analog channels.  better yet, send a screenshot of when you are selecting your cable provider and every step thereafter.  actually if you have windows 7, there is a program called problem steps recorder that will be perfect for me in this situation.  its an awesome tool that hardly anyone but me and chris pirillo know about.

http://www.technibble.com/windows-7-problem-step-recorder-create-step-by-step-recordings/

just hit record, and then it lets you highlight parts of the screen, etc and makes them all into screenshots into what you did exactly.  run it, then setup live tv signal and then send me the .pdf file or link it gives you once you hit done.
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pcrequestAuthor Commented:
I ended up disconnecting cable, inserting rabbit ears, then scanning.  This was the only way i could figure out how to erase old channels.  Then I reverted back to cable and ran a scan.  by using http://www.silicondust.com/support/channels/ I could figure out where some remain analog channels are mapped to clear QAM.  I only ran a digital scan.  I had to manually add clear QAM channels that came in fine, but MCE doens't add automatically.  Life is good now.
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pcrequestAuthor Commented:
Lots of limitations in mce. I just ended up rescanning an alternate source to get results I wanted.  Jschristian44 helped lead me to solving this.
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jschristian44Commented:
glad you finally figured it out.  not sure exactly what you did but as long as it works, fantastic.
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