Revere PD has had some work done on their system, been switching off to another of the Zone channels, not sure which one. FD has changed, check the wiki at Scan New England, same for Everett FD. No other changes, just double check everything in the wiki.
Eastern MA Portal - Scan New England Wiki
Massachusetts State Police - Scan New England Wiki
Put in the nearest zones to you for MSP, if you have a control channel only capable scanner put all the control channels in for the zones closest to you, 5. 20, 3 if you like and 1 if you like. Don't worry about talk groups, just let them talk and when you feel like you don't want to hear a particular group, just lock it out.