Online TV usage across all devices almost tripled in year-to-year comparisons.An Adobe study says when looking all online TV-video consumption -- so-called TV Everywhere, content provided by TV networks through digital sites, as well as non-authenticated online video -- there was a 246% year-over-year rise.While many TV network and pay TV providers' TV Everywhere digital platforms were slow to roll out, the study says activity is rising: 95 TV channels now are behind more than 160 TV Everywhere sites and apps in the U.S., 30 more channels than six months ago.Another positive sign: the number of unique TV Everywhere visitors to Web sites and apps per month increased by 157%. So did TV Everywhere video streams per visitor per month (live, video-on-demand and linear), which grew 133%.Game consoles and over-the-top (OTT) devices saw the strongest growth -- a 539% increase of TV Everywhere activity.Adobe’s analysis is based on aggregated and anonymous data from over 1,300 media and entertainment sites between the first-quarter 2013 and the first-quarter 2014. This includes 151 billion total online video starts and 1.3 billion TV Everywhere authentications across 250 pay-TV service providers covering 99% of pay-TV households in the U.S.