WRKO is now broadcasting on the HD2 signal of WEEI-FM 93.7. Yes you'll need an HD radio (portables $45 or so) but if you get one (also in some cars, or tabletop models) you go to 93.7 and hit the button for the HD2. Signal is a fraction of the reg 93.7 signal (out of Peabody). Get it fine here in Beverly.
Also about $50:
HD radio site tho it still says 93.7 HD 2 is Funkytown...