Bill, we put a 32" Sony flat screen on the wall that backs onto the head (we have the U shaped bankette) and I ran the cables straight down behind a teak channeled piece of trim, then across behind the cushion to port to the electrical and to starboard, around the corner and up and out a hole I drilled in the deck in front of the mast for the cable wire.  On deck the wire comes up through one of those white nylon plugs with the black rubber seal in the middle (completely water tight) and I attach it to a $29.99 HD antenna that I clip on the mast in whichever direction works best to pick up free signals from the US or Canada. 

In Toronto we obviously get a ton more channels than you will in Georgian Bay, but for the price (they see those antennas at Canadian Tire and Future Shop for a bit more $, or at the local discount computer parts outlet) it would be worth trying out the cheapo HD antenna.  The latest one has a very thin wire.  My reception is often better than my neighbours who paid the big bucks for the mast top mounted specialty marine antenna.  It often requires some repositioning and then doing the auto channel search function a few times, but we often get good shows, some in HD.  Lately, however, I've been using the download function onto my smartphone for either Netflix or YouTube ($12.99 monthly subscription) and 'casting' the show onto the TV from the smartphone using a Google Chromecast dongle ($45 online).  Some new TV's have this feature built in.  (NOTE: the TV remote stopped working once the temperature in the boat got down near freezing.  Works fine when its warm.)

Richard,
Our approach to entertainment on board is a bit different. We have a 24 inch Skyworth TV with a built in DVD player on board. The Skyworth brand is well know in the trucking industry among those who have living accomidations aboard their truck or RV. It has moisture proof boards and components.

I typically borrow a weeks worth of movies on CD from the local library and view those when at anchor. The TV also has an antenna which is hoisted up the to the spreader for local TV reception. That works well providing the station is with in 40 miles and usually provides me with local weather reports. It's a bit problematic however as the antenna is directional and the signal can be reduced when swing on the anchor.
Bill

I have a pretty good TV solution I think. My TV is mounted on the starboard side in the shelf area (MK I). I had to remove one shelf (see photo). Source 1 is the digital antenna mounted in the aft stateroom which is an easy cable run to the TV. It allows me to get local braodcast channels (sports, etc). Source 2 is a ROKU attached to the TV. I use a ATT Nighthawk wifi hotspot and get amazing speeds, so with the ROKU I can watch Netflix, YouTube and a bunch of other channels. Source 3 is a Bluray player to show DVDs. Source 4 is my laptop which outputs to the TV through HDMI with which I can use Slingbox to watch my home TV cable box. With this setup I can watch just about anything with ease.

I have unlimited data plan with Verizon, do a hot spot from iPhone to Apple TV.   Apple TV hard wired to TV.  Works well until we experience weak cell signals.  

October 2020:  tv reception is non existent.  Thinking top of mast TV antenna is probably 15+ years old, time to replace it next spring and also same vintage ZINWELL SD TV tuner.  Two years ago bought new LG tv and disappointed.  We are in Pepin, Wisconsin with TV stations in Rochester & Twin Cities, MN as well as La Crosse and Eau Claire, WI.  Granted, we have 400 foot bluffs on both sides of the river.  One of our neighbors at the dock gets La Crosse WI stations that we don't get.  He bought a circular TV antenna at Annapolis boat show a few years ago.  Any thoughts or suggestions appreciated.