Originally Posted by woodyjoe /forum/post/15397228
As I understand it if you use a set top cable box you are using the tuner in the cable box. Are cable boxes typically slow in changing channels?
Yes. I would not use the "changing channels" terminology to describe the process. It's more like "acquiring a signal" and "displaying the acquired signal." Now you select a channel and wait. With the old analog technology it was possible to "change channels" instantly. We've come a long way since then.
On cable systems with "switched digital" you select a channel number and then the converter box communicates to the head end and then, after a while, that channel is transmitted to you, very much like "on demand" service. That allows the cable company to reclaim bandwidth, using it only for those services that customers are actually viewing at the moment. That's progress!