[mythtv-users] Firewire channel changing for Cisco RNG150?

[Christopher Meredith]

Apparently Comcast is replacing the SA3250HD boxes with a
Cisco-branded box carrying the model number RNG-150. There's an entry
for this box in the wiki on the Firewire Cable Boxes page but it only
specifies how to set this device up as a source (which works, by the
way). Unfortunately, I can't figure out how to get firewire channel
changing to work. Does anyone know whether this is currently possible
with this box?