In theory, these days are the opportunity for the Commons to exercise its core responsibility to monitor the use of public money - in practice, they're debates on issues raised by select committee reports.

BBC: Week ahead

Russia has become a sort of guest member of the NATO alliance under an arrangement that will afford it considerable opportunity to influence that organization's deliberations but, in theory at least, no veto over decisions taken by the other, full- fledged members.

CENTERFORSECURITYPOLICY: Bush's Russian Gamble

We've never seen all three on the same disc and it is a unique opportunity to confirm that all three sound exactly the same on your system -- at least in theory they should.

ENGADGET: Spears & Munsil High Definition Benchmark Blu-ray mini-review