Cable companies are migrating away from analog signals, mainly because it's possible to put several channels in the same bandwidth as a single analog signal. If they carry analog at all, it would most likely just be the basic service and there's no guarantee that it'll be available for any given length of time. If you want to see if there's analog available, just connect the cable directly into your TV's antenna jack and try tuning in some channels. If they're there, you still have analog. If not, you'll need another cable box for the TV. another answer: if the other cables are hooked up to the splitter that is feeding your digital cable then yes they will be active as long as all connectors are on behing your wall plates.
About the same as VHS compares to DVD.
No, a S/PDIF is, by definition, a Sony / Phillips Digital Interconnect Format connector, and is always a digital signal. It is usually connected by an RCA cable, and can be carried by cable specified for analog use, but digital cable is better.
As compared to what? Are you talking analog cable or digital cable? Are you comparing it to an analog signal over the air or a satellite receiver?
Did you connect the digital output from the box to the TV? Is the standard RF cable connected too? And did you run the digital tuner setup on your TV? And finally, is your input selector set for the digital signal or analog signal input? One of these should work, unless of course, you're not tuned into a digital feed from the cable company but are watching an analog signal being sent into your box. Not every channel's converted over yet and some signals are only still available in analog. Maybe your cable company's converting the analog signal as well or possibly they haven't set up their digital feeds for a specific channel.
Only if you have a digital output on your cable box. If not, it'll end up being a digital signal, converted to analog and then reconverted by your TV back to digital. Besides, the digital changeover date is only for local television stations when they turn off their analog transmitters. This means that if you currently have cable or satellite with analog outp[uts, that aspect of it shouldn't change.
Speakers are analog devices. There is no cable and connector that will connect a digital audio jack to a speaker without a digital to analog conversion and an amplifier. If the audio output is digital, you will need a compatible amplifier that has the same digital input. Then you will need to link the amplifier to the speaker with exterior grade cable.
The difference between digital cable TV and regular cable TV is the quality of the video stream that is being presented on the TV screen. A digital cable will provide a better quality picture, usually with a larger framerate and bitrate and as such these will look better on a larger TV.
Digital optical audio cable can carry data to decoder-enabled devices in a few formats; Dolby DTS is one of many such formats. Some of these can carry surround sound. Besides, optical is digital, and standard sound card output is analog.
No, you can still use an analog TV, but you will need a converter box to receive digital cable.
yup
It's not as simple as making a cable that fits. Digital audio cables and digital signals, both coaxial and optical, require a digital input. You need to convert the digital signal to analog to work with older receivers. These are available (Google Digital to Analog Converter or DA Converter). Just about every device that has a digital output will also have an analog stereo output, which will work with your old gear.
Depends if your cable company is sending anything in analog to the box. Since every thing's converting to digital, chances are there may be a few remaining channels in analog still in basic, but those will be gone by February 17, 2009.