text: A scene from "Cheapest Weddings."CreditSeven Studios
  This Weekend I Have … an Hour, and I Miss 'Four Weddings'
  'Cheapest Weddings'
  If you've already burned through all the wedding shows TLC et al. have to offer, this Australian series about couples throwing low-budget parties scratches the same itch. Don't come looking for impressive D.I.Y. tips, though: The people just buy the super cheap versions of whatever they're looking for, occasionally to disastrous effect. Luckily, the show includes a range of locations and styles (and more than one couple per episode), so it's consistent but not too repetitive.
  … an Hour, and I Am Dorky
  From left, Noel Fielding, Eric Idle and Warwick Davis in "Eric Idle's the Entire Universe."CreditGuy Levy/BBC
  'Eric Idle's the Entire Universe'
  Where to watch: Friday at 10 p.m., on PBS. (Check local listings)
  This one-off special, starring Noel Fielding, Eric Idle and Warwick Davis, among others, combines a campy musical revue with a 101-level lesson on the history of the universe from the physicist Brian Cox. The full-on tap number about the multiverse is great, but the highlight is definitely an ABBA-tinged disco number about gravity.
  … Six Hours, and I Want the Best of the Best
  Where to watch: Now, on YouTube.
  Encore+ has added many fabulous Canadian gems to its YouTube channel, including the very charming "Due South" — also staring Paul Gross! — the tween classic "Degrassi Junior High" and several French-language shows.
  A version of this article appears in print on , on Page C18 of the New York edition with the headline: This Weekend I Have …. Order Reprints | Today's Paper | Subscribe