www.iFourWinns.com

Go to Newegg.com My wife bought a 22" Sony LED with free shipping for $159.00. (it was on sale, last July) It too is 1080P, BUT if your on the boat you don't need it unless you have Blu-ray, cable or any thing like that.

If you're feeling really frisky and good with electronics, you can take off the back cover of an LED LCD, remove the 120v power supply and replace it with a 12v computer power supply. They provide all the needed outputs (3.3v, 5v, 12v +/-) that a LED TV would need. No more need for an inverter and it's overhead.
http://www.mini-box.com/M3-ATX-DC-DC-AT ... tegory=101

I wouldn't attempt this with a standard LCD tv, they have cathode tubes providing the backlight that usually take 24v.

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1981 Columbia 8.7
2015 Yamaha FZR - 87mph - sold
2006 Yamaha GP1300R - sold
2003 Chaparral 215 SSI - sold
2009 Stingray 195CS - sold
2000 Four Winns H180 - sold
1976 O'day Daysailer II - sold
Rick's Four Winns H180 Mods/Upgrade Thread

A TV that draws 40 watts will run on a standard 75 amp hour deep cycle for around 10 hours til the battery reaches 50% and it's time for a charge. If you're charging off the boat alternator... it won't fully recharge forever.

If you're smart and purchase an AGM deep cycle battery to run the inverter.. Like an Optima Blue Marine 75 amp hour deep cycle.. They are good to around 80% discharge and fully charge in 2-3 hours, not all day like a lead acid. They can be had for around $200. TV runtime @ 40 watts? 17 hours.

Really, what it comes down to is do the math. Add up all your watts used. How long do you watch TV for each day? What else do you use? Radio? Does it have an AMP or is it just a head unit? A standard agm deepcycle 75amp/hr battery can easily last all weekend with LED lighting and modern electronics.