9.1 and Comcast Channel 1 - any fix/workaround?

i've had a similar problem off and on since the 6.x software update and a corresponding comcast update to their motorola box... I changed the positioning of the IR blasters and it helped some. I still sometimes have the simliar problem if I'm watching something on my #2 tivo that's connected to this motorola box and the #2 tivo needs to start recording something. I can see the "large" older motorola box receiving all 3 channel numbers, but it seems as if it doesnt take the completely. I've done everything i could including finding a better IR code for the box. My #1 tivo has been using their small MOT DCT700 without any problems. I'm going to be swapping out the older box for the newer DCT700 soon and I feel my problem will be resolved since I have never had this problem on #1 with the DCT700.

(BTW - i dont remember what my larger comcast box model is.. but it actually has the channel number display on the front and looks very simliar to the DVR model yet it's not the dvr model.)

feel free to message me on this if you need more details. I'm not at home right now so I cant get the model of the old comcast box. But i can tell you the problem has existed with a S2-80, S2-40 and now the STD2-80

actually i would still be tempted to say that it still might be an IR code issue. you're using channels 100+ on the box. Think of it like this - when a recording ends - there is an actual IR command sent to "change" the channel back to the same channel (assuming there is not another recording starting immediately). In your case it's the numbers after the 1 that seem to be "missing" on both the tivo and the box. I did have problems with zeros at one point and some other numbers. The tivo was sending the code but for some reason was not changing the channel properly and somehow someway was actually showing up on the tivo and the box as the same incorrect channel. it sounds VERY backwards that an IR code problem could cause this but i think it is still the case.

Suggestion. Set some manual recordings overnight or during the day while at work. Set them at either 30min or 60 min intervals on one of the 100+ channels you dont actually receive but has that "not authorize" static screen- set it at lowest quality as well (this way it will use the least amount of space) Set it on 2 diff channels if possible - recording back and forth on each 30min or 60min interval. When you get up or get back home, then check to see what the box and the tivo are on. Then go back and fast forward through all the recordings. This way you can see if there is something actually going on with the channel changing itself or something else. This might let you track it down a bit more


BTW - i always remove channel 1 from my list of channels but the IR blaster sends the 01 (like doing it manually) then it will actually change to it

oh and i know this isnt a "fix" but might be a way to affect a work around - doesnt the kidzone stuff allow you to block a channel? I've never used it so i'm not quite sure exactly how it works


another thought just popped - if you're using both IR blasters on the box - it might be possible that the signal isnt being received uniformly and causing zeros to end up before the 1 instead of after or even not being received at all (thus making it just a 1). yes i know this should cause the tivo and the box to be out of sync on the channel it's on but ya never know

Another update! I just got off the phone with Tivo, and here's what I've been told: the tech guy said that he had heard of this happening here and there, and that he believed it was something of which Tivo was aware.

Simply put, he said that it sounded like the IR tuner was dropping a number (such as you want channel 100 but it goes to channel 1). I know that this doesn't exactly fit the problem that it seems we are having, but I've tried the following anyway.

Here's what he's said I should try (and I've set my Tivo to do so):

UPDATE... What Tivo suggested below didn't fix it!!
Go to Messages & Settings > Settings > Channels > Channel Changing > OK > Answer cable box question > Advanced >

THEN... click on IR Code. Whatever your number is, keep it (click to the right for all 5 digits).

FINALLY... change the LETTER. If you're on B (which I had, and he said was the most typical), then go to A, which is slower.

As of me clicking "Post Reply," it's been set this way for 5 minutes, so I don't know if it works yet. But I'll keep you posted!

PS... he said it "wasn't a Tivo problem and wasn't from 9.1" I don't know that I believe that, but it's what he said.

UPDATE... What Tivo suggested above didn't fix it!!

Here are photos:

Tuner 1 (sorry about the blur):


Tuner 2:


A dual tuner TiVo should never attempt to tune two different cable box channels at the same time, yet this is what mine just did.