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Q. My TV box shows standard-definition versions of channels, not the high-definition copies I’m paying for. How can I change that?

Dec 12, 2019  One of our sets has one of the small X1 receiver boxes (not a DVR). Unfortunately, it doesn't usually switch automatically from SD to HD. I have set the preferences to auto-tune the box to the highest resolution, which is important because my elderly mother in law can't remember that HD starts in the 700's and sits much of the day in front of a distorted SD image stretched by the TV. Dec 29, 2014  Yes, there is a way you can auto program your tv to tune in to HD Channels, even if you don't know the channel. Check out my video to find out how! Congratulations and welcome to XFINITY® TV from Comcast. XFINITY gives you TV your way. If you have a high-definition (HD) television, you can enjoy. Program you want to watch by selecting Auto-Tune when setting a reminder. 6 Using Your On-Screen Guide. 6, select “auto tune to HD channels”, if ON is selected change it to OFF, OR: Select “prefer best resolution”, when highlighted it Automatically changes to off. 7, then select Exit. 8, Turn TV off for a few minutes to allow the TV to reset these settings 9, then turn TV back on.

A. Best vst synthesizers. The black bars that bracket a standard-def channel on a high-def screen should be a badge of shame in the subscription-TV industry, but they’re a common sight when you punch in a channel’s traditional number on a cable or satellite remote.

Learn more information about high-definition TV requirements from Comcast here. HDTV and What You Need to Get It. Learn more information about high-definition TV requirements from Comcast here. The Auto-tune to HD feature automatically changes to the high definition (HD) feed when you watch or record programming on your TV. This feature requires a HD or HD / DVR receiver. This feature is not available on mini boxes, DTAs, or CableCARD equipment. Select your receiver type below. Dec 28, 2013  New LG TV doesn't find any channels. Do I need a new receiver? I received a new LG HD TV for Christmas and it wants me to either use an HDMI cable or a coaxial cable. My receiver does not have a coaxial out that I can find and when I use the HDMI cable the TV cannot find any channels. When a connect the DVD player via the r/g/y component cables.

SD televisions vanished from retail years ago -- the Consumer Technology Association last bothered counting their shipments in 2007 -- and it should be an exceedingly safe bet that when subscribers tune into channels available in HD, they’ll watch it on HDTVs.

You can often fix that with some clicking around settings screens, but your odds vary depending on your TV provider and the age of the box you pay $5 or more a month to rent.

• At AT&T’s U-verse you can only avoid SD duplicates by using your remote to create a list of favorite channels. You can’t set the guide to show only HD channels either, although spokesman Brett LeVecchio offered one tip: Channels between 1000 and 2000 should usually be HD. The DirecTV satellite service that AT&T bought last year is smarter, offering an option in its Settings screen to “Hide SD duplicates” from the program guide.

• Charter, the cable company that recently acquired Time Warner Cable and Bright House in a $79 billion transaction, has an “HD Auto Tune” option on its Spectrum boxes that automatically switches you to the HD version of a channel if you select its SD offering. But if you’re in one of the small minority of Charter households with an older box, you may have to cobble together a favorite-channels list instead.

• A similar situation exists at Comcast, the nation’s largest cable firm. Its X1 boxes -- the Philadelphia firm says half of subscriber households should have them by the end of this year -- automatically selects HD versions of channels when available. Older boxes don’t do that but should present a “Watch in HD” button if you tune in an SD version of a channel.

• Cox’s boxes include an “Auto-tune to HD” option -- but its Contour boxes based on Comcast’s X1 software do not.

• Dish Network’s Hopper digital video recorders automatically hide SD channels when HD counterparts are available. Its older boxes have an option to show only HD channels.

• Optimum’s boxes automatically display high-definition versions of channels. This subsidiary of the European cable firm Altice has gotten this right for years: When I looked at this issue in 2012, the company then known as Cablevision was the only firm among those I eyeballed to offer an HD auto-tune option.

• Time Warner Cable’s boxes also show HD editions of channels by default.

• Verizon’s Fios TV boxes have an auto-tune option unmentioned in its online documentation or hardware manuals--I only saw it in a post on its tech-support forum. Press the Menu button on the remote, scroll up to Settings, select System, scroll down to Television, and scroll down to select “Auto tune to HD.” Spokesman Raymond McConville said the company hasn’t made this the default because earlier changes to the Fios TV interface were “met with a lot of confusion from customers.”

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(Disclosure: I also write for Yahoo Finance, and Verizon is buying that site’s parent firm Yahoo in a $4.8 billion deal.)

Rob Pegoraro is a tech writer based out of Washington, D.C. To submit a tech question, e-mail Rob at rob@robpegoraro.com. Follow him on Twitter at twitter.com/robpegoraro.

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