You can get an optical to coxial converter box if your receiver has a coaxial digital input. If it doesn't, you will have to purchase an optical digital to analog (D to A) converter.
The official term for the coaxial digital input is S/PDIF (Sony/Philips Digital Interface Format). Punch "optical S/PDIF adapter" into a search engine and you'll get lots of options, shouldn't cost more than $30usd. There is a generic "grey box" that's sold under many brand names that works fine, available at Radio Shack etc.
Coaxial one.
A Dolby Digital stream from a DVD player can be sent to a high def receiver by digital optical or coaxial cable.
An optical audio cable is used to transmit digital audio (AC-3) signal from the source to the receiver, such as from a DVD player to a digital audio amplifier/receiver. You can transmit 5.1 dolby digital or DTS surround sound with an optical audio cable, same as digital coaxial audio cable.
optical fiber ,twited pai,coaxial cable
You will need a sound card with a digital output (coaxial or optical) or a sound card with surround audio outputs and a receiver with 5.1 analog inputs to make it work.
A coaxial digital output (usually an RCA jack) can connect to a digital optical input using a coaxial to optical digital converter. This is a small box that goes in between the two products.
Coaxial cable, Optical fiber cable, Twisted Pair
telecommunications
You may not be able to get it to work through your receiver due to the HDMI HDCP copy protection feature. The Starchoice tuners have to be set up to allow the display on your brand of TV and Receiver. If your brand of receiver isn't supported as an HDCP-compliant device, then you won't see a picture. You'll have to connect directly to the TV and run a coaxial or optical digital cable to the receiver for the audio.
If your home theater receiver has an optical audio input, plug it from the output of the TV to the input of the receiver.