#!/usr/bin/awk -f

BEGIN {FS=":"}
/^ChannelInformation/ { found = 1; j++; printf j ","; next}
found == 1 { for (i=2;i<=NF;i++) { gsub(/^[ \t]+/,"",$i); printf $i }; printf "," }
/^s*$/ && found == 1 { printf "\n"; found = 0 }