Here is a list of idents that linked into instantly-available episodes on Sprout On Demand on Comcast starting in 2005 and were designed by Primal Screen, who also designed the ones from the linear channel months later. All of these idents were set to the same soundtrack.
Flying Flowers[]
We see flowers flying until a green one lands on the Sprout logo.
Mobile[]
Sesame Street On Pbs Kids Sprout "Mobile" (2005 Comcast On Demand Bumper)
We see Ernie, Barney, Max and Ord, Po, a few blue letters, and a few flowers on a mobile, and the Sprout logo is formed. A female voice explains what show you're going to see next, and a kid's voice says "let's grow!" An alternate version features Caillou, Gilbert, Super Grover, Sagwa Miao, and Bob.
Flowers[]
A green flower bounces on Sprout flowers and makes its way to the Sprout logo. "PBS Kids Sprout, presented in partnership with your PBS station. Let's grow!" Also seen in a commercial for PBS KIDS Sprout on Demand that appeared on networks like Nickelodeon.
Big and Little[]
A big flower and a little flower bounce together, and the little flower makes its way to the Sprout logo. "PBS Kids Sprout, presented in partnership with your PBS station. Let's grow!"
Hula Hoop[]
Pbs Kids Sprout "Hula" (2005 Comcast On Demand Bumper)
Blue, green, and pink flowers hula hoop, and it is revealed the green flower is the one on top of the Sprout logo, as the other sprouts keep on hula hooping.