Here is what WPVI, the ABC station in Philadelphia, Pennsylvania, was offering in October 1999. From an archive of the stations website.
Monday
1:35 am – Action News at 11 (repeat)
2:05 am – Puerto Rican Panorama (repeat)
2:35 am – Greatest Sports Legends
3:05 am – ABC World News Now
5 am – Action News Mornings
7 am – Good Morning America
9 am – Live with Regis and Kathie Lee
10 am – The Rosie O'Donnell Show
11 am – The View
12 pm – Action News at Noon
12:30 pm – Port Charles
1 pm – All My Children
2 pm – One Life to Live
3 pm – General Hospital
4 pm – The Oprah Winfrey Show
5 pm – Action News at 5
6 pm – Action News at 6
6:30 pm – World News Tonight
7 pm – Jeopardy!
7:30 pm – Wheel of Fortune
8 pm – ABC Primetime
11 pm – Action News at 11
11:35 pm – Nightline
Tuesday-Friday
12:06 am – Politically Incorrect
12:36 am – Philly After Midnight
1:06 am – The Oprah Winfrey Show (repeat)
2:06 am – Action News at 11 (repeat)
3:06 am – ABC World News Now
5 am – Action News Mornings
7 am – Good Morning America
9 am – Live with Regis and Kathie Lee
10 am – The Rosie O'Donnell Show
11 am – The View
12 pm – Action News at Noon
12:30 pm – Port Charles
1 pm – All My Children
2 pm – One Life to Live
3 pm – General Hospital
4 pm – The Oprah Winfrey Show
5 pm – Action News at 5
6 pm – Action News at 6
6:30 pm – World News Tonight
7 pm – Jeopardy!
7:30 pm – Wheel of Fortune
8 pm – ABC Primetime
11 pm – Action News at 11
11:35 pm – Nightline
Saturday
12:06 am – Politically Incorrect
12:36 am – Philly After Midnight
1:06 am – The Oprah Winfrey Show (repeat)
2:06 am – Action News at 11 (repeat)
2:35 am – Cinema Six Movie
4:35 am – Paid Programming
5:30 am – Bugs Bunny and Tweety [the listing says "Bugs Bunny & Tweety Show/ABC's Schoolhouse Rock"]
6 am – Action News Saturday Morning
8 am – Disney's One Saturday Morning programming
12 pm – ABC sports/varied programming
7 pm – Action News*
7:30 pm – Visions
8 pm – ABC Primetime
11 pm – Action News at 11
11:35 pm – Million Dollar Movie
*Outside the College Football season, Action News would air at 6pm, WNT Saturday at 6:30, Primetime Weekend at 7pm, and Visions at 7:30pm.
Sunday
1:35 am – Action News at 11 (replay)
2:05 am – Cinema Six Movie
4:05 am – Cinema Six Movie
6 am – Puerto Rican Panorama
6:30 am – The Mass
7 am – Action News Sunday Morning
8 am – Sunday Live with Wally Kennedy
9 am – Action News Sunday Morning
10:30 am – Inside Story with Marc Howard
11 am – This Week with Sam Donaldson and Cokie Roberts
12 pm – Action News
1 pm – ABC Sports/varied programming
6 pm – Action News at 6
6:30 pm – World News Sunday
7 pm – ABC Primetime
11 pm – Action News at 11
11:35 pm – Million Dollar Movie
Monday
1:35 am – Action News at 11 (repeat)
2:05 am – Puerto Rican Panorama (repeat)
2:35 am – Greatest Sports Legends
3:05 am – ABC World News Now
5 am – Action News Mornings
7 am – Good Morning America
9 am – Live with Regis and Kathie Lee
10 am – The Rosie O'Donnell Show
11 am – The View
12 pm – Action News at Noon
12:30 pm – Port Charles
1 pm – All My Children
2 pm – One Life to Live
3 pm – General Hospital
4 pm – The Oprah Winfrey Show
5 pm – Action News at 5
6 pm – Action News at 6
6:30 pm – World News Tonight
7 pm – Jeopardy!
7:30 pm – Wheel of Fortune
8 pm – ABC Primetime
11 pm – Action News at 11
11:35 pm – Nightline
Tuesday-Friday
12:06 am – Politically Incorrect
12:36 am – Philly After Midnight
1:06 am – The Oprah Winfrey Show (repeat)
2:06 am – Action News at 11 (repeat)
3:06 am – ABC World News Now
5 am – Action News Mornings
7 am – Good Morning America
9 am – Live with Regis and Kathie Lee
10 am – The Rosie O'Donnell Show
11 am – The View
12 pm – Action News at Noon
12:30 pm – Port Charles
1 pm – All My Children
2 pm – One Life to Live
3 pm – General Hospital
4 pm – The Oprah Winfrey Show
5 pm – Action News at 5
6 pm – Action News at 6
6:30 pm – World News Tonight
7 pm – Jeopardy!
7:30 pm – Wheel of Fortune
8 pm – ABC Primetime
11 pm – Action News at 11
11:35 pm – Nightline
Saturday
12:06 am – Politically Incorrect
12:36 am – Philly After Midnight
1:06 am – The Oprah Winfrey Show (repeat)
2:06 am – Action News at 11 (repeat)
2:35 am – Cinema Six Movie
4:35 am – Paid Programming
5:30 am – Bugs Bunny and Tweety [the listing says "Bugs Bunny & Tweety Show/ABC's Schoolhouse Rock"]
6 am – Action News Saturday Morning
8 am – Disney's One Saturday Morning programming
12 pm – ABC sports/varied programming
7 pm – Action News*
7:30 pm – Visions
8 pm – ABC Primetime
11 pm – Action News at 11
11:35 pm – Million Dollar Movie
*Outside the College Football season, Action News would air at 6pm, WNT Saturday at 6:30, Primetime Weekend at 7pm, and Visions at 7:30pm.
Sunday
1:35 am – Action News at 11 (replay)
2:05 am – Cinema Six Movie
4:05 am – Cinema Six Movie
6 am – Puerto Rican Panorama
6:30 am – The Mass
7 am – Action News Sunday Morning
8 am – Sunday Live with Wally Kennedy
9 am – Action News Sunday Morning
10:30 am – Inside Story with Marc Howard
11 am – This Week with Sam Donaldson and Cokie Roberts
12 pm – Action News
1 pm – ABC Sports/varied programming
6 pm – Action News at 6
6:30 pm – World News Sunday
7 pm – ABC Primetime
11 pm – Action News at 11
11:35 pm – Million Dollar Movie