Mystified

With about a dozen programs on the DVR that I haven't seen (including probably eight Mythbusters, a show which bores my wife; I get that, and wouldn't have inflicted one on her in these circumstances), I can't figure out why she would insist on watching a rerun of a program we both saw already in what she knew would be our only hour of viewing together - well, for that matter, of being in one another's company - last night.