Television I have a 19 inch Sharp UNYTRON old television Model number 19C-M100R. I want to hook up a DVR but I cannot find where to hook the in and out cords for my DVR unit.. Can you please help

Kindly type your model number followed by 'operation manual' in google search engine. You will find a number of websites providing free manual. Just download it and follow the instructions there.

You could try

operatingguides.com

if you need a user manual
or

servicemanuals.co.uk

if you want the schematics etc

We've used them in the past and found them very good.

Also if it is not listed then ask via the link and they
will probably be able to get it for you.

overheating

You should check the set with another video source to rule out the set from being defective. The process of elimination is the only way to find out where the problem is.
Jerry G.

my att remote does not work the att dvr cable box unless I'm within one inch of the DVR why?

You have to use an converter to hoop up the monitor and the DVR, but the price is not cheap, maybe better to purchase a new tv set.
http://shopper.cnet.com/video-components/startech-com-composite-and/4014-3025_9-31332780.html

Your video adapter will only supply video input from your computer to your television. You must use an audio cable from the audio out of your computer (that would be the jack that you would normally plug your computer speakers into) to the audio input jack of your television shown below.


To do this, you will need a double male 1/8" stereo sable audio cable seen below.



One end plugs into your computer audio out and the other end into the audio jack shown in the illustration. You will then get your computer audio through your television speakers. You will be able to control the sound both with the television audio and the computer audio settings.

If its only 6 months old it should be under warranty

My workaround for this was to use the Composite output (yellow video, red/white audio) out from the DVD player and put it as input into our VCR.  You can then use a coax output from the VCR into the tv.

If you don't have a VCR then I'd go to Radio Shack, Best Buy, Circuit City, etc. and see if they sell any adapters or converter boxes