Video Mania - S3-E6
Plot hole: The plot for this episode is that Mark reluctantly tries out video games for the first time and soon becomes addicted to them. However, the season 1 episode "All in the Family" showed him to already be an avid gamer.
Audio problem: When Cody is playing the blues on his guitar, he is shown to be fretting the higher pitched strings while playing the lower strings open. However only low notes are heard and at least three different chords are heard, which would not be possible if he was playing the strings open.
Answer: I could be mistaken, but when the series debuted, its premise was something along the lines of "A divorced contractor and a widowed beautician impulsively marry." If that is true, then the Foster children's father is dead. As for Frank, it could be that his wife was an unfit mother and is therefore not in her children's lives. Perhaps the writers felt addressing these issues would lead to more questions, or at the least require characters to bring up the unseen parents more in conversation, so perhaps they felt it was just better to never talk about them at all and let any discussions about them remain off-screen.
Phaneron ★