TODAY 8a: Maria Shriver sits down with Patti Davis to discuss what it’s like caring for a parent with Alzheimer’s. Lin-Manuel Miranda on directing “Tick, Tick... Boom!” TODAY Best Sellers — Thanksgiving kitchen gadgets.

<p>Maria Shriver is sharing her powerful conversation with Patti Davis, daughter of Ronald and Nancy Reagan, on something they have both faced: caring for a parent with Alzheimer’s. Plus, Hoda Kotb and Savannah Guthrie are chatting with Lin-Manuel Miranda about what it was like to direct his first movie, “Tick, Tick... Boom!” and what he did when he found out Andrew Garfield can sing. Also, TODAY Best Sellers — Shop All Day contributor Jenn Falik has all the kitchen gadgets you need.</p>