Although she is frequently mentioned throughout the series, Shawn's mother Virna only appears in three episodes: Boy Meets World: Fishing for Virna (1996), Boy Meets World: Janitor Dad (1996) and Boy Meets World: Turkey Day (1996).
Remember the goldfish I used to have?
Cory: The turtle?
Shawn is listed in the series as living in a trailer park in West Philadelphia. West Philadelphia has no trailer parks as it's known as the poor section of town. West Philadelphia is actually known for housing projects and section 8 housing and is predominately African American neighborhoods.
At the end of Dangerous Secret, Rider Strong does a PSA on the prevention of Child and Teen abuse
The episode "No Guts, No Cory" has a different ending on syndication which was taken from the series "Teen Angel" which was the conclusion to the "TGIF Time Warp", the ending involved once Salem was found by Sabrina, the cast of "Boy Meets World" returned to their time.