Do speaker cables need a burn in period?


I have heard some say that speaker cables do need a 'burn in', and some say that its totally BS.
What say you?


128x128gawdbless
Clearly. Yet they sound great. Better than his previous cables which were directional 
yes, I should have been more clear.  I was told it didn't matter which end was attached to the amp and which to the speakers...that's as far as my technical expertise goes
A signal is a signal, right? Cable burn-in, seriously? I have been listening to hi-fi longer than a lot of you have been alive. I have never heard cables that sound better after burn-in and I don;t spend lots of money on speaker wire. If I have money to spend I spend it on something that will make a difference like upgrading components.