The San Francisco medical examiner identified the 38-year-old as the victim in the accident, which occurred Monday night near the Haight-Ashbury neighborhood. He was riding a motorcycle that was struck by a car.
Beckwith was one of three hosts of "Curb Appeal," which features home renovations. He was a carpenter and general contractor who grew up on a farm in Maine and owned his own Bay Area construction business.
HGTV said in a statement that Beckwith's creativity, adventurous spirit and general love of life will be missed.
Police say Beckwith suffered head trauma and was pronounced dead at a hospital. The 30-year-old driver of the car that struck him is cooperating with the investigation.
A Facebook memorial page, called "Billy J Beckwith, Superstar" was made in his honor. It is filled with messages of remembrance from friends and family members.
The Associated Press contributed to this report.
