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Old 12-05-2014, 12:22 AM
 
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I have a couple old TVs and a couple of new ones...

I have cable TV.

When changing channels, my old TV goes fast however with my new TV, theres a lag, why?

Can't be the cable, so its the TV.....is this normal?
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Old 12-05-2014, 06:25 AM
 
Location: The Ranch
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Are you comparing LCD/LED to LCD/LED? If you are, then the lag is due to the way the TV process the incoming signal and how fast it can adjust to choosing the correct format to send to your screen. Your older TV may have a setting to automatically default to one setting while the new TV looks for the optimum signal to send to the screen.
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Old 12-05-2014, 08:59 AM
 
Location: Cleveland, Ohio
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No I am sure he's comparing an "old fashioned" tube TV vs. a new fangled LCD, but your advice is still correct.
Your new TV's have to decide "is this digital or analog or Standard Def or High Def"...
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Old 12-05-2014, 08:45 PM
 
Location: Sarasota FL
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Besides choosing what video signal to process it also has to think about what audio to use.
PCM, bit stream, stereo, tru surround, dolby dig. 5.1 My TV also has DTS neo 2:5 I don't even know what is that.
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Old 12-06-2014, 03:01 AM
 
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So no matter what, all new TVs lag?

Why are these TVs thinking so much? Shouldnt they learn from the last time it was on that channel?

Or is this a conspiracy by the advertisers so that men wont use the remote control so much because of the terrible lag? I feel like its a computer on dial up internet....glad I kept some of the old tube TVs to let me keep my channel changing ways.
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Old 12-07-2014, 11:35 AM
 
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I more suspect that with digital it has to "build" the picture. The old over-the-air system put out a continuous even stream of signal that formed the lines of the picture and information that "locked" the picture in place to keep it from rolling. Digital is highly compressed and much of the information that would be repeated in the old system is only sent once. Example: Two actors talking on a fixed set - the set doesn't change from frame to frame so it might not have picture information sent on how to show it more than once a second. Showing an incomplete picture with large areas greyed out is going to make a consumer think there is something wrong, so the imposed delay is deemed less offensive and less likely to invoke support calls.
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Old 12-09-2014, 08:40 AM
 
Location: Cleveland, Ohio
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Are you really that impatient that waiting 2 seconds for the picture to snap on is a big deal?
I suppose TV's could have math co-processors and hard drives so they can remember what format each station is in... that'll add some cost to already pricey TV's. I'll wait the 2 seconds....
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Old 12-09-2014, 10:34 AM
 
Location: The Ranch
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Quote:
Originally Posted by forestgump99 View Post
So no matter what, all new TVs lag?
No they don't. It depends on the quality of the components used which are more prevalent in higher name brand TVs. Thus my Samsung, Toshiba and Sony have no lag. Yet the TCL I have in the spare room for guests does. You get what you pay for.
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Old 12-09-2014, 01:11 PM
 
Location: SF Bay Area
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My cheapo Insignia lags, my more expensive Panasonic doesn't.
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Old 12-09-2014, 02:03 PM
 
Location: location, location!
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In addition to the TV, it might be your cable box. If you've got the new TV hooked into a digital cable box, and the old set just plugged into the coax cable, then changing channels is going to be a lot faster on the older set.
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