I recently found it subbed at PJYSubs. (I strongly recommend bookmarking this site)
Just to spoil the show, the lady is Qri's mother.
However, if you don't have time for such old shows, here's a gist of what the show is about:
Together with all 7 members of T-ara, Qri's mother is invited to the show; a panel of celebrities is supposed to guess whose mother she is through a series of questioning.
Things to look out for in the show:
T-ara talking about boyfriends
Eun Jung and So Yeon (almost) kissing
Qri, Eun Jung and Ji Yeon crying