A list of your forms that have not yet been finalized was shown in the Review section of the program. Click on Review and go through the section until you arrive on the screen with the forms and schedules shown on your tax return that need to be finalized along with the date available.
See this TurboTax support FAQ for IRS forms availability - https://ttlc.intuit.com/questions/1908854-irs-forms-availability-table-for-turbotax-individual-perso...