I have my HDMI cord hooked up from the cable box to the tv and it still say "no signal" what do I do?

If you hookup your TV directly to the coaxial cable, bypassing the cable-box, do you get a few channels? If so, then the coaxial cable is carrying a signal, which is good.

How are you hooking the output from the cable-box to the input(s) on the TV? Coaxial output port on box to coaxial input port on TV?
Red/blue/green "component" outputs on box to matching inputs on TV? Red/White audio outputs on box to red/white inputs on TV? HMDI output from box to HDMI input on TV?

You have to "tell" the TV which of the inputs:
* coaxial (with TV set to Channel 3 or 4)
* component
* HDMI
to "listen" to.

You would definitely want to try using a HDMI cable.
Your current hookup requires signal conversion too many times resulting is quality loss and more chances of introducting errors and this might be where your red tint is coming from.
Assuming AT&T is providing you digital signal at 720 resolution or higher, the box then has to convert back down to composite video (340 resolution) in order to send it to your TV over the basic cable cord. Your TV then takes this low resolution signal and blows it up to fit your nice new flat screen TV.
Skip all that and use HDMI and you'll get the best picture that your provider is sending you. The digital input stays digital and is passed onto your TV over the digital HDMI cable with no loss to video or audio.

Hook your X Box into the Receiver HDMI input with your HDMI cable and another HDMI cable from the HDMI out on the receiver to the HDMI input on your TV.

If you have an lcd or modern thin screen tv, go into your menu and make sure your input selection is correct. If you're hooking up to a cable network, you will want to select the HDMI input coming from the cable box (HDMI 1, HDMI 2, etc.). This is for the newer cable systems that have the HDMI cable plugged into the tv. If you have the older, bnc connection (round with a wire in it), you will have to select TV or the input.
If all of the input selections are in order, you could have a faulty cable, or a bad cable box. Try to swap the box out with another tv, if available, to verify if the box is, indeed good.
If you have a standard tv, check the cable box on another tv, also, and swap out the cord to check it, also.
Otherwise, if the cable box is good, and the cords are good, you may have a problem with the tv itself, in which case servicing will be required.
Good luck, and hope this helps.

the simple answer is no.
but if you have basic cable (coax) you could connect it to a vcr, tune the channels with the vcr-
connect the vcr to the TV with composite video (yellow, red/white)

Use only the hdmi cord to hook it up and go to menu on the tv and select hdmi for hook up and you should get a picture. Make sure your cable cord is the only cord running to the cable box , you don't need any other cord.

user cable box hdmi direct access to tv hdmi input if ok ...receiver need replaced...if sam proble need replaced cable box...

When I hooked up my HD cable box using an HDMI cable, I had to go into the cable screen menus and select HDMI output. You may have to do something similar when using an S-video cable. Your DVD recorder doesn't seem to have an HDMI input, so you'll have to use the S-video or (worst case) composite video (red, white, yellow cords). Your cable box may also be scrambling the signal so that you can't record. That may be why you can record by bypassing the cable box.

Yes, the firmware on your hdtv box has an old firmware, I switched my old hdtv box with a newer one box and the problem was solved. It seems that it can't work if your hooking up with DVI to HDMI cable to your receiver to tv. Your hd box must have an HDMI out otherwise it causes problems. I also have rx-v661 and i finally hooked up everything HDMI to the receiver and then to the tv and it was having the problem you speak of. After I switched out the hd box for a newer one everthing worked fine.

My 42" Westinghouse HDMI inputs just stopped working. I thought it was the TW Explorer 4250HDC issue so I got a new one from TW. Still said no signal from HDMI. So, I shut the TV down and pulled the power cord out of the back. I waited a few seconds and reconnected the pwr cord. The TV "re-booted" so to say and now the HDMI inputs work. I think TVTEK has the right idea that it is firmware/software related. In the mean time, you might want to give that a try.