like many, raul velez is hitting the barbecue, but not i your average backyard. tonight he is at sutro tower celebratin 50 years of the iconic structure. >> for the most part sutro towe is just your average 977-foot tower on the west side of town. when it is doing its job, no on notices. >> reporter: but this week the goal is to notice it and celebrate the tower that sends broadcast signals to a huge swath of the bay area. he is just the fifth person to hold his position leading tower operations, and it is fitting. he spent three decades in radio broadcasting. >> kbcw and other stations. it was very important to me! >> it is a mild coincidence tha the anniversary falls on labor day. the lasers shoot up the center of the 977 foot tower. >> it just happens to fall on july 4th, but we get to celebrate our country and an icon of cbs news bay area. it i a two for! >> reporter: the mastermind behind the installation says that it is all part of the plan >> we named him as the artist on this piece. the truth is tha sutro is sort of the frame. the sky is the canvas. the l