Antenna Color Codes

Many are not aware of how much free TV is available using a TV antenna. There is a handy site that lets you know how many TV channels you can expect to see using an antenna. There is some overlap of stations and some not in English or for shopping only, but there is variety. A number of local stations have begun adding sub-channels, such as Laff, PBS, CW Network, Escape, GRIT, Cozi, Retro TV, Movies!, Go, ME TV, This TV, Justice Network, Weather, Bounce, and more. In fact, there are over 130 new, free, over-the-air stations coming during the next year.

Obviously all antennas are not equal and outdoor are better than indoor for receiving more stations. LINK
By typing in my zip code, I find that there are 112 free over the air TV stations, not including sub-channels available, providing I use the correct antenna. They are sorted by antenna color code, with the easiest and cheapest type first.

Yellow - A Small Multi-Directional Antenna is recommended in Yellow color code areas. Signal strength is highest, so small antennas that receive signals equally well in all directions work very well. Indoor antennas work very well in Yellow color code areas, which are usually 10 to 15 miles from the TV station transmitter. Many indoor antennas have a range from 30 to 50 miles.

Green - A Medium Multi-Directional Antenna is recommended in Green color code areas. Signal strength is still good, but weaker than in yellow areas. An amplified indoor antenna may also work in Green color code areas, which can be up to 30 miles from the TV station transmitter.
Light Green - A Large Multi-Directional or Small Directional Antenna is recommended for Light Green color code areas. Signal levels are weaker, so a larger omnidirectional antenna or a directional antenna is needed to receive signals effectively, which can be up to 30 miles from the TV station transmitter.
Red - A Medium Directional Antenna is recommended in Red color code areas. Signal strength is weaker, and directional antennas are needed to pick up signals. These are the most popular antenna types due to their modest size and effectiveness 30 to 45 miles from the TV transmitter site.
Blue - A Medium Directional Antenna with an Antenna Preamplifier or a Large Directional Antenna is recommended for Blue color code areas. Signals are weaker, so larger antennas or antennas with amplification are needed to receive TV signals effectively. TV antennas in the blue color code area may also need to be installed on a tower or high rooftop to pick up distant channels, which can be 45 to 60 miles from the TV station transmitter.

Violet - A Large Directional Antenna with an Antenna Preamplifier is recommended for Violet color code areas. These are areas farthest from the TV station transmitting towers, and need the largest antennas and best preamplifiers to pick up TV signals effectively, which can be 60 miles or more from the TV station transmitter. TV antennas in the Violet color code area may also need to be installed on a tower or high rooftop to pick up distant channels.