Performance Channel ended in 2008.
Performance Channel was created in 1985.
I may be missing something here, along the lines of a definition, but isn't the 'forward' channel at one end of the link the 'reverse' channel at the other end, and isn't the 'reverse' channel at the first end the 'forward' channel at the opposite end ?
The Jewelry Channel ended in 2008.
Channel A ended on 2009-09-24.
Channel M ended in 2012.
C Channel ended in 1983.
The Baby Channel ended in 2008.
The Life Channel ended in 1986.
Channel Express ended in 2002.
City Channel ended in 2012.
Audi Channel ended in 2009.
Z Channel ended in 1989.