Does model Polaroid TTM-2401 TV have a built in digital tuner?

Here is what you need, its from the manual for your TV

From your description it sounds like you TV is experiencing a shut down and re-set condition. This is usually caused by some type of voltage irregularity in the power supply section of the TV. Unfortunately, this is not an easy fix and will require a trip to the shop. Get an estimate before approving repair. In the new world of disposable electronics the cost of repair may exceed the value of the set.

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Your TV will need a HD converter because it doesn't have a digital tuner but only if you are receiving over the air signals. If you have a cable box or satellite receiver, then you do not need the converter HD box.
Click here for more info on the TV specs.

Its a different model number but this should be your fix...

http://www.badcaps.net/forum/showthread.php?t=6215

Check the connection of the ground. Bad connection of ground usually create this problem.
Especially the ground connection between the crt board and the wire who surround the picture tube. Let me know what you will get after this.

check this website if it might help:

http://www.broadbandreports.com/forum/r20051686-Polaroid-TTM2401-Universal-Remote-Code

To me, sounds like a picture tube issue. horizontal / vertical controls don't fix it. then its dead.

EEEEEEEEh check the power supply, from your power cord , fuse, rectifier bridge diode, whith out forget that the old TV got the bad connection in old solder!!!!

That's called the "F" connector and it attaches to the inside of the tuner, which is solder mounted to the main board. Main board has to be removed, tuner extracted from the main board and if the pc board inside the tuner is not damaged a new "F" connector can be soldered in place... At our shop we charge $60.00 for the repair and $2.50 for the part. I'm sure you'll find that's about average.
Bill