Here is why she is leaving the show after 8 years.
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Kotb has made a handful of 'Today' appearances since exiting the show in January.
Savannah Guthrie explained what's going on.
Bush Hager returned to 'Today' on Tuesday, September 2, after taking over two weeks off.
Star has been in Italy with her husband and kids.
The fourth hour of 'Today' has aired prerecorded episodes all week.
Fans hoped Hollywood star would become permanent addition to NBC show.
Roker has been missing from the NBC morning show all week, along with Jenna Bush Hager.
The Monday, August 18, episode of 'Today With Jenna & Friends' featured old segments and interviews.
Kotb bid an emotional farewell to NBC's 'Today' on January 10.