Media consumers can elect to have local news, weather, traffic, or other perishable content inserted into customized media streams. The perishable content is inserted into the media stream as an add-in block containing items associated with a particular locale that matches a user location source preference. The user can specify a static location source preference, or a follow-me, or roaming preference, in which the user's current location is used. The perishable content is selected for inclusion in an add-in block by matching a user's location preference to a locale associated with the perishable content.