Help with Regular Expressions (for RSSFeed Scanner)

i'm trying to get the rssfeed scanner working properly for me, but at the moment, i can't consistently get
it to give me the results i'm looking for using regular expressions.

i've tried a few different how-to's that i've found, and they have partly helped.

an example of what i'm trying to do.

i want to download the show life. the things that make it tricky are that there can be other shows that
have life in the title (eg life is wild), and i only want to get the hdtv version, not the hr, 720p or x264
versions.

the way i understood it is that i have 1 feed, and 2 filters.

1st filter is a fail filter that has the expression (hr|720|264)
2nd filter is a pass filter that has the expression life.*hdtv.*

what do i need to do to the 2nd filter to get it to exclude any shows that aren't just life?

please help or point me in the direction of a good how-to that can help me out.

i don't use rssfeeds, so maybe i'm out of line here, but judging from the
tutorial on this site can't you use the filter: live?s01*
then all you have to do is change it to season 2 when (and if) that happens.

with the house example, what's the \\s do?

it matches against a space at the end of the word.

e.g. so that it won't trigger on "housewives"