Mr. Conductor, Ruff Ruffman and The Aquabats! Super Show!

Loosely a crossover based on the 2012 Hub original, here is a 21-episode style.

The Conductors of Shining Time Station US

 * 1) Mr. Conductor 1 (Ringo Starr)
 * 2) Mr. Conductor 2 (Alec Baldwin)
 * 3) Mr. Conductor 3 (Michael Brandon)

The FETCH! Host

 * 1) Ruff Ruffman (Jim Conroy)

From The Aquabats! Super Show!

 * 1) The MC Bat Commander (
 * 2) Crash McLarson (
 * 3) Jimmy the Robot (
 * 4) Ricky Fitness (
 * 5) Eagle Bones Falcon Hawk (

Kids' WB! and FOX Kids in the style of Olympic Games

 * 1) Ash Ketchum and Pikachu (
 * 2) Mary and Togepi (
 * 3) Rikochet and El Rey (
 * 4) Al Smith (
 * 5) Nelly Marcos and Baby Mayra (
 * 6) Sakura Avalon and Kero (
 * 7) Jonny Quest and Bandit (Jason Marsden and Frank Welker)
 * 8) Shaggy Rogers and Scooby-Doo (
 * 9) Sandra Larson (
 * 10) Virgil Hawkins (
 * 11) Daemona (Jocelyn Loewen)
 * 12) Kevin Whitney and Krypto (
 * 13) Gordon Hooper (
 * 14) Felicia and Tawny McCoy (
 * 15) Donkey and Diddy Kong (
 * 16) Chance Furlong and Jake Clawson (Charlie Adler and Tom Kenny)
 * 17) Kimiko Tohomiko (
 * 18) Osmosis Jones and Drixenol Koldriliff (
 * 19) Johnny Test and Dukey (
 * 20) Tyler Bowman (
 * 21) Tai Kamiya and Agumon (
 * 22) Kari Kamiya and Gatomon (
 * 23) Flint and Rocky Hammerhead (
 * 24) Fox McCloud (
 * 25) Marina Liteyears (
 * 26) Serena Tsukino and Luna (Stephanie Sheh and Michelle Ruff)
 * 27) Kick the Cyber Cat (
 * 28) Mushra (
 * 29) Lorelei Brooks (Cherami Leigh)
 * 30) Mondo Ooya (
 * 31) Danielle Sanders (
 * 32) Speedy Cerviche (
 * 33) Kick the Cyber Cat (Rick Jones)
 * 34) Kassie Carlin (
 * 35) Kelly Westwood (
 * 36) Alicia Parker (
 * 37) Millie Andrew (
 * 38) Yami Yugi Moto (
 * 39) Miki Atwood (
 * 40) Jaden Yuki (
 * 41) Zoey Hanson (

Mean Girls

 * 1) Meilin Rae (
 * 2) Chigusa Burgh (
 * 3) Mayuko Kiyokawa (
 * 4) Terri Burton (
 * 5) Heather Hogwarsh (
 * 6) Abigail Thompson (
 * 7) Jordan Hanson (
 * 8) Anne Granger (Carrie Keranen)
 * 9) Yolanda Harrison (
 * 10) Marina Barton (
 * 11) Kenny Marigold (
 * 12) Nora Richards (
 * 13) Christine Flowers (
 * 14) Monica MacDonald (
 * 15) Batch and Gluko (
 * 16) The Becky Trio (

Pokemon Villains

 * 1) Jessie, James, Meowth and Wobbuffet (
 * 2) Giovanni (
 * 3) Cassidy and Butch (
 * 4) Dr. Namba (
 * 5) Damian (
 * 6) Alexander Davis (
 * 7) Koji (
 * 8) Ken and Mary (

Episodes

 * 1) ManAnt! - Thomas Stories: Thomas Gets Tricked and Edward Helps Out (from A Place Unlike Any Other)

Trivia

 * A crossover featuring Kimiko's outfit from The Apprentice.
 * Ending segment: Pikachu's Jukebox (also in Thomas Videography).
 * The 21 entire episodes are similar to all of Shining Time Station Season 1.