Bash and variables

Hello gentlemen, need a little help. Write a fairly simple script and stuck a bit with the data from the variable. If the data is specified directly in the script:
...
url=$(wget-qO - $rss | grep -ioe 'http.*torrent' | grep -ie '[0-9]\\{4\\}/\\(Survivors\\|The.Event\\)' | grep -v '720p\\|HD')
echo $url
...
everything is fine, I echo outputs something like
lostfilm.tv/download.php/2739/Survivors.S02E03.rus.Lostfilm.TV.avi.torrent

but if I create a variable
shows="(Survivors\\|The.Event\\)"
and write
...
url=$(wget-qO - $rss | grep -ioe 'http.*torrent' | grep -ie '[0-9]\\{4\\}/\\"$shows"' | grep -v '720p\\|HD')
echo $url
...
I script nothing displays and I understand that wget just doesn't work. errors with no no. prompt in what side to dig?