Another flashback show...
Every time I get sucked in the story, the show takes 2 steps backwards with a 10 minutes flashback. This way of making TV shows is so lazy and tired by now. I think it started with Lost (?) and now too many series abuse this.
With good writing, you can tell the background of a character without showing it.
Some good shows that featured next to no flashbacks: Breaking Bad, Stranger Things, The Sopranos and Game of Thrones (even if the last seasons sucked).
We didn't need to see Walter White at his prom or wedding to understand who he was. Everything was communicated to us via his actions in the first few episodes.