Super 70s is one of the flagship genre channels of 181.FM, the online network that spins off dozens of single-format streams from its main service. This one is wall-to-wall 1970s: soft-rock staples, disco floor-fillers, funk grooves and singer-songwriter hits from the decade of eight-tracks and AM gold. It is an easy, familiar listen aimed squarely at anyone who grew up with — or wishes they had — seventies radio.