Happy Birthday to The Mighty Signal! The Santa Clarita Valley Signal is celebrating 100 years on February 7, 2019. Through recently digitized documents and photographs, along with more than a dozen interviews, SCVTV will present 'The Might Signal: The First 100 Years' on Thursday, February 7 on Spectrum 20, AT&T 99, scvtv.com, signalscv.com, and Facebook live at 7 p.m.