actually it's little dependent on your system's time display settings. for example the command
outputs
Code:
Mon 19/12/2011. 9:43:13.76
on my system. so i need to work with this string.
the following adjusted command outputs the filename from the above data in the format you want.
Code:
for /f "tokens=2-7 delims=/:., " %a in ("%date%.%time%") do set FileName="MyShow_%a-%b-%c_%d-%e-%f.flv"
Code:
set FileName="MyShow_19-12-2011_9-53-15.flv"