week after week week after week /wiːk ˈæftər wiːk/

adverb

1. () For an indefinite number of successive weeks  ( week after week )
   for an indefinite number of successive weeks
     The TV series captivated its audience, leaving them eagerly anticipating the next episode week after week.
   The TV series captivated its audience, leaving them eagerly anticipating the next episode week after week.