We have a new cable box, Scientific Atlanta Explorer 4250 HDC rented thru Comcast. the Cablebox signal is connected to a Bose Lifestyle® V20 home theater system, via an HDMI to HDMI cable. The Bose Lifestyle® V20 home theater system is connected to the TV (Sony Bravia XBR4) also with an HDMI to HDMI cable. We used to be able to conrol the sound with the remote for the cable, you'd see the bars moving and the sound would go up and down, and the mute worked as well. Since switching to the new Scientific Atlanta Explorer 4250 HDC cablebox, we can no longer control the sound with the remote for the cablebox. We still see the bars (from 0 to 30) moving, but the volume level does not go up or down. This is very annoying, I want to get back to the way the sound worked with the old cable box.

I am not sure you can connect your DVD player to your cable box. You should be able to connect both your cable box and DVD player to your TV set with two HDMI cables. This link is a pdf_usecares file of the TV manual that shows how to hook up your dad and cable box.

http://www.managemylife.com/mmh/pd_download/lis_pdf/OWNM/L0902617.pdf

Hope this helps.
Bob

Please follow guidelines given in operation manuals of both.

Both the set and the box used should have the closed caption feature.

If box is in line to rear audio/video jacks you will have to engage the CC from the box.

I doubt it will work if hooked that way from within the box---go to menu and in CC area in either set or box select CC1 which is the most common one used.

Try 'Enter' if you haven't already. A yes/no question on a cable box is usually a toggle, so select yes and press Enter. If that doesn't work, try a different code from the system menu. (Press 'System' and go to 'remote control.')

You can only Connect a iPod via a iPod dock
Apple iPod Univeral Dock
and use either
Apple Composite AV Cable or Apple Component AV Cable
based on what Output you iPod Allows.

the list of which iPod that is supported is listed on each page of the AV Cables above.

You can use a IR Blaster Cable with the iPod Dock to control the iPod also.

Okay so you need to run a fiber optic cable to back of bose system for sound on the cablebox if it's a hd cablebox. If you don't have a fiberoptic connection on cable box then you can use a digital coax audio cable and plug it from cablebox if it has it to back of bose system where the plugs are colored all black under the red and white connections. This cable is basically a yellow video rca type cable. That cable doubles as a video cable and a digital audio cable. But anyways once you plug your cablebox up digitally you need to make sure under the settings or setup menu of cablebox that you go under audio and make sure your cablebox is set to dolby digital instead of hdmi. Especially if it's a scientific atlanta time warner cable box. The bose remote should operate eveything still unless I read your question wrong and your saying it doesn't.

I’m happy to help further over the phone at https://www.6ya.com/expert/brandon_60dfebff379d64bd

The Bose codes for Comcast remotes for both the Cisco (labeled Xfinity) and Scientific Atlanta (labeled Comcast) DVR remotes are 31229 and 31933. 31933 worked with my Bose CineMate Series II

The Scientific Atlanta box was a cable box and recieved CATV signals. The Direct TV box is satellite only. You might check if it has a built in ATSC tuner for off air digital signals. Direct TV in most locations offers the major networks in HD format.