For ABC Family, I would've done a summer marathon to air during the Memorial Day weekend.  Of course, that marathon would not include Sister Sister and 8 Simple Rules, but since they will appear on the lineup starting June 11, I include them in my Summer Marathon.  The rules are the episodes have to be about vacation type trips, like to beaches or Disney World, not just trips away, like where Carol and Frank in Step by Step always like to go to hotels to get it on and stuff like that.

12:00 PM Full House 3.1 Tanner Island
12:30 PM Full House 6.23 The House Meets the Moust Pt. 1
1:00 PM Full House 6.24 The House Meets the Moust Pt. 2
1:30 PM Family Matters 6.22 We're Going to Disney World Pt. 1
2:00 PM Family Matters 6.23 We're Going to Disney World Pt. 2
2:30 PM Step By Step 2.18 Aloha Pt. 1
3:00 PM Step By Step 2.19 Aloha Pt. 2
3:30 PM Step By Step 5.22 We're Going to Disney World Pt. 1
4:00 PM Step By Step 5.23 We're Going to Disney World Pt. 2
4:30 PM Boy Meets World 3.21 The Happiest Show on Earth
5:00 PM Boy Meets World 7.8 The Honeymooners
5:30 PM Sabrina the Teeage Witch 2.23 Disney World
6:00 PM Sabrina the Teenage Witch 3.25 The Good, the Bad, and the Luau
6:30 PM Sabrina the Teenage Witch 5.17 Beach Blanket Bizarro
7:00 PM Sabrina the Teenage Witch 7.21 What a Witch Wants Pt. 1
7:30 PM Sister Sister 3.9 Thanksgiving in Hawaii Pt. 1
8:00 PM Sister Sister 3.10 Thanksgiving in Hawaii Pt. 2
8:30 PM 8 Simple Rules 1.22 Good Moms Gone Wild

 There is an episode of Sabrina where they go on a trip and Sabrina has to buy Soliel Moon Frye's character a present and SMF's character (I get Morgan and Roxy confused) finds her mom there, but I couldn't find the episode in the list.