Yes most home stores sell the universal garage door openers that can be programmed, or go to the website of the garage door brand.
You can try Lowes or Home Depot.
The Chamberlain Group is a manufacturer of garage door openers and associated Chamberlain - the company's do-it-yourself line of garage door openers
yes they sell universal remotes for garage door openers.
at the lynx garage door store
Chamberlain garage door openers are strong, durable and are made by the world's largest manufacturer of garage door openers, each model offers the ultimate in safety and security features.
Genie Garage Door Openers are a big favorite among consumers. The Genie Garage Door Openers are easy to use and install for use with your garage door.
Garage door openers can be purchased from hardware and DIY stores or online though various websites. Garage door openers come in a number of different styles to suit your needs.
It includes establishments making automatic garage door openers
Here is a blog article about the different types of garage door openers and their applications. See the link below
Linear garage door openers are used for opening a garage door in a wireless manner. They use a light beam and receiver to allow one to open the door without physically touching it.
Universal garage door openers work because they have a row of switches that must be in the correct sequence to open a specific garage door. To open a door with an unknown sequence the person using the opener would have to manually try sequences until they found the correct one. This would take a fairly long time.