[mythtv-users] Cable TV question

[Richard J. Finn]

	I'm new to the list and new to MythTV.  I'm still setting up my 
computer.  Here's my setup I'm working with (I haven't purchased all of 
the hardware yet):
	
	OS: Red Hat
	Proc: Intel P4 2.4 Ghz
	RAM: 512 MB PC133 SDRAM
	HD: 180 GB
	Tunner: Hauppauge PVR-250 PCI w/ IR Remote
	Video: nVidia GeForce4 MX440SE 128MB AGP w/ TV Out
	Cable: Time Warner Digital Cable

	The cable comes into a set top box and then connects to the TV via a 
coax cable.

	My question is: Will the PVR-250 be able to change the channel via the 
cable alone, or do I need to run a serial cable up to the set top box?