Picked up a second hand Toshiba TV 19LV505. This is a DVD / TV combo 19 inch with 1280×720 resolution. The pi rebooted and was able to get signal on the display, but there were some overscan issues. Some manual editing was needed to get the image the image to fit the corners.

Open Terminal > sudo nano /boot/config.txt

Note the lines below for this particular TV, disable overscan is uncommented and set to one. Then the overscan entries for this display alone. Those are uncommented and set. This seems to be perfect.

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
disable_overscan=1

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
overscan_left=30
overscan_right=30
overscan_top=20
overscan_bottom=20

If this particular pi is used elsewhere, the overscan settings might all need to be # commented back again and hopefully it will work. My Sharp 32in TV had no settings applied in the config or in the preference settings. Terminology wise, is the TV overscanning or am I telling the TV to overscan? I'm actually not sure. Need to read further. I wonder if somebody has created a big database of TV models and overscan settings. That would be pretty cool.