Slingbox founder Blake Krikorian died yesterday from a heart attack while surfing, Recode’s Kara Swisher reports. She calls the entrepreneur, who was 48, “much beloved,” and “one of tech’s savviest execs.”

Krikorian and his brother, Jason, created Sling Media in 2004. The technology enables TV viewers to stream their programming to remote devices including smartphones and tablets.

Story has it that the brothers invented the technology to help them follow San Francisco Giants games when they were away from home.

Dish Network bought Sling in 2007 for $380 million. The brothers left the company two years later.

Blake later founded R2 Studios, which helped to port digital media to TVs. Microsoft bought the operation in 2013 to beef up its Xbox game consoles. Krikorian joined the company as a corporate VP.

He was CEO of id8 Group, which consulted for companies including Microsoft, AT&T, Toshiba and Time Warner. Krikorian was also a director of Amazon until the R2 Studios sale, and of FreeWheel until Comcast bought it in 2014.