E601i-A3 shuts off while watching and makes popping sound from back when turned back on

Can be the TCON board or the Main board. Can confirm by replacing the TCON board.
If you wish to get some details; visit the site linked here. Pull up older posts. http://electro-medical.blogspot.com/

Does appear to be a PS issue.

diagnose television fault Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
http://www.avsforum.com/forum/167-plasma-flat-panel-displays/1491814-common-diy-diagnosis-repair-info-plasma-led-lcd-ccfl-lcd-tv-sets-monitors-display-devices-mostly-power-supply-repairs.html

How to Diagnose TV Problems

http://www.repairfaq.org/samnew/tvfaq.htm

Latest Repair Tips

Try the flashlight test for image in a darkened room. If you see image checkout the inverter board.

Sounds like corrupted firmware. Contact any service technician. A firmware update is necessary.

Fault to the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Open back an replace the video board, or converter board. Get em from Jimmys tv repair.

Sounds like the CPU froze. Unplug set from power completely, then plug back in, should work. If not then the problem will have to be solved by a repair technician.

yes take it back 6 weeks i would return it

Vizio HDTV- Lips out of sync

Anyone with a new Vizio E601i-A3 60" or 70" HDTV that is having audio "Lips out of sync problems" with a cable or satellite box.

On Comcast cable boxes (or others), here's what you need to do: FIND MENU for AUDIO or HDMI setup on CABLE BOX or Satellite Box.

FOR COMCAST

1. Turn on TV and have Cable box Turned OFF.

2. Press MENU on COMCAST REMOTE.

3. Go to AUDIO Setting OR HDMI Setting. (On cable or Sat. BOX)

4. Change setting from Auto to L-PCM. (Turn off cable box to exit)

This should resolve any "out of sync" lips to picture after commercials on HD channels.

*This is a handshaking issue from the cable box to the Vizio E601i-A3