From my VHS recordings, here are the commercials and bumpers that aired during a broadcast of "Gargoyles" in February, 1999 (I think this was Wednesday, February 10th, 1999, but I'm not 100% certain).

Included here:
1. Toon Disney channel bumper (featuring Chip and Dale)
2. The first few seconds of "Awakenings" (the pilot episode of Gargoyles)
3. Gargoyles "will be back" bumper
4. "The Last Unicorn" promo.
5. "Be My Valen-Toon" promo (a 4 hour "Valentine's day" themed programming block)
6. Promo for "Winter Beach Party", the next week's afternoon theme event. Kinda the opposite of "Christmas in July", instead it's "Summer in February".
7. "Bump in the Night" promo (I have to admit, never saw this one.....)
8. Gargoyles "are back" bumper
9. Gargoyles "will be back" bumper
10. "Adventures of Sonic the Hedgehog" promo
11. "101 Dalmations" promo
12. "Care Bears" promo
13. "Mighty Ducks" promo
14. Gargoyles "are back" bumper
15. Walt Disney end bumper (this aired at the end of every Gargoyles episode. Actually, at the end of every 90's Disney Afternoon show, I believe)
16. Toon Disney "up next" bumper (another episode of "Gargoyles", followed by Darkwing Duck)
17. "Toon Treats" promo (an anthology block showing different cartoons)
18. "ToonDisney.com" promo
19. "Movie Surfers" segment (focusing on "Mulan", specifically on the voice acting and the animation of the "Mulan" character)
20. Toon Disney "Happy Valentine's Day" bumper.

Commentary:
Toon Disney as a cable channel launched in April 1998. By 1998/1999, the "Disney Afternoon" programming block of cartoons was pretty much over, but all of those reruns from the last 10 to 15 years (going back to Gummi Bears in the mid 80's) had to be moved somewhere, so Disney created this channel to air all of the reruns. Following the Disney purchase of "Fox Kids" in 2004, Toon Disney eventually became "Jetix" (half of the time) and eventually the channel fully became "Disney XD" in 2009.

"Gargoyles" was my favorite show of the Disney Afternoon block. This recording here was from the broadcast of the first two episodes of Gargoyles (they aired two episodes a day during weekdays). I believe this was the start of a rebroadcast, as it cycled through episodes during weekday afternoons.

Anyway, this gives you a picture of what Toon Disney was like, in the Winter/Spring of 1999.