TVs & Home Theaters forum


Cable Coax picture quality

by Kenabr / January 10, 2016 11:03 AM PST

I have a new Samsung 4k tv. I have a cable co. Dvr that will record 2 shows at a time that requires I go off box to watch another show. I have a Coax off a splitter to Coax input on the tv. Some channels are fine put many are not. The good channels are designated as an example 6-1 while the channel 6 is bad . Isn't this tv supposed to upscale any signal? Do I need some device to convert Coax to one of the other hdmi inputs for better quality on all channels?

Discussion is locked
You are posting a reply to: Cable Coax picture quality
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: Cable Coax picture quality
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
Clarification Request
This is a question for your cable provider support folks
by Pepe7 / January 10, 2016 1:20 PM PST

Since you don't mention which provider you have, we don't really have the actual starting point per se, since all of them have slightly different systems/hardware requirements.

That said, yes- it is likely you need to rent an additional box in order to receive the full quality. Not something you can usually buy from a third party to solve the problem, at least not now with the switch to digital & HDMI gear. Ask them.

Keep in mind that there are online forums where actual individuals from the respective providers can assist with this type of thing. Take a peek at the various sub-forums @ FWIW, I have received fairly decent help there in the past when I was stuck.

All Answers

Collapse -
cable coax picture quality
by Kenabr / January 10, 2016 1:28 PM PST

Time Warner Cable is my provider. So apparently you can't just convert coax to hdmi with out some electronics even though the tv has the necessary hd/4k capability

Collapse -
So this is a single HDTV/DVR setup w/ splitter?
by Pepe7 / January 10, 2016 5:01 PM PST

Not sure why you would even need a splitter if the hardware was recent from TWC. Even my older (5-6+ yrs?) Moto xx16 series boxes from Comcast could record two shows simultaneously while I watched another on the main HDTV.

I guess you might want to provide more info here on the hardware specifics, and what content precisely you need to record/watch. This is a TWC issued DVR? Which make/model?

Collapse -
Let's say channel 6 is SD and 6-1 is HD.
by R. Proffitt Forum moderator / January 10, 2016 2:18 PM PST

The reason TWC and others push SD channels today is simple. There are still millions of pre-HD sets out there.

SD ( ) is here ratty old 480i and a 4K (my bet is it's 4K UHD ) is 3840 pixels wide by 2160 pixels high which means no hope for ANY upscaler to fill in all those missing pixels. It's going to look ratty.

"The upscaling is as good as the source material," says Rob Manfredo of Sony, whose 4K TVs eliminate visual noise and fill in details using an image database. The process works wonderfully with 1080p Blu-ray and 1080i satellite video, he says, but not as well with lower-resolution material, such as 480p and 720p."

Popular Forums
Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions

Does BMW or Volvo do it best?

Pint-size luxury and funky style

Shopping for a new car this weekend? See how the BMW X2 stacks up against the Volvo XC40 in our side-by-side comparison.