An exemplary method includes a digital video recording (“DVR”) data exchange system 1) maintaining first porting configuration data associated with a first DVR service system and second porting configuration data associated with a second DVR service system, 2) receiving a request to port DVR data from a first DVR system associated with the first DVR service system to a second DVR system associated with the second DVR service system, and 3) in response to the request, accessing a first DVR data set associated with the first DVR system, generating, in accordance with the first porting configuration data and the second porting configuration data, a second DVR data set based on the first DVR data set, and providing the second DVR data set as output. Corresponding methods and systems are also disclosed.