Tvheadend

Is it possible to prefix filename with timestamp? I dont understand why date and time are added at the very end of filename?
When there are more recordings, then its hard to find anything there. Of course others might want to sort them other way...

As a solution to this problem, I would like to propose some arguments that might be used.
If there were an input box, everyone could write sth like "%Y-%m-%d_%C_%T", where:
%Y - year (eg. 2014)
%m - month (eg. 04)
%d - day (eg. 01)
%C - channel name
%T - recorded program title
%S - recorded program subtitle

and so on...
extension could be added automatically based on chosen profile.