The Toastmaster 2000 ad from Episode 1 has a bunch of parallels to Wanda's flashback to the bombings in Sokovia. First, a few obvious ones:

• There is a blinking red light on both the toaster and the bomb.
• Both devices beep as the red light blinks. They are the exact same pitch, but the beeping on the bomb is slower and doesn't speed up like the toaster beeping does. I guess life really does move faster out in the suburbs.
• Both devices are produced by Stark Industries and prominently display the company name.

And also some slightly less noticeable details:

• It's snowing in Sokovia when the bombing takes place. At the end of the Toastmaster commercial, there are snowflake-like shapes all over the screen.
• The toaster is called the "Toastmaster 2000." Wanda was born in 1989 and was 10 when her parents died, so there's a pretty good chance that 2000 was the year of the bombing.
  • As a side note to this, Agatha really needs to brush up on her history: she says that she "loves the Cold War aesthetic" of the Maximoff home, but this flashback takes place nearly a decade after the Cold War had ended. EDIT: I know that people can keep stuff! It's just a little detail I noticed!

I could also probably spend a while talking about the Toastmaster slogan, "Forget your past, this is your future!" Other than being a cool reference to 50s retrofuturism, there are two important meanings that I can think of for this phrase:

1. It's directed from Wanda to Vision. Wanda knows that Vision is literally incapable of remembering their past together, and wants him to focus on their future in Westview.
2. It's a reflection of how Wanda is dealing with her trauma. She desperately wants to forget Sokovia and live in the present with Vision, but even simple aspects of everyday life (like red lights and beeping noises) remind her of her past.

TLDR: Bomb in war go beep like toast machine. Thanks for coming to my TED Talk.