He visits his parents 'Saturdays'. [=he visits his parents every 'Saturday']
I will arrive on 'Saturday'. = ('chiefly US') I will arrive 'Saturday'.
('Brit') He will arrive on the 'Saturday' and leave on the Wednesday.
(..) is officially dead. I'm sorry. Thank you. But just so you know, my dream hasn't exactly... Okay, so we will see you Saturday, and please pretend to be surprised. Bye. You told someone else? Bree, I thought the whole point of the party was to announce our engagement. (..)2006 TvShow: Desperate Housewives Title: Listen to the Rain on the Roof Season: 3 Episode 1
(..) So you were very mysterious on the phone. Why did you wanna have lunch? Well, I wanted to invite you to a dinner that Orson and I are having this saturday. So you asked us to a meal to announce another meal? That's so... Bree of you. What's the occasion? Oh, um, no occasion. (..)2006 TvShow: Desperate Housewives Title: Listen to the Rain on the Roof Season: 3 Episode 1