Final answer:
Presidents John F. Kennedy and Ronald Reagan significantly utilized television to communicate with the public and restore the nation's confidence, following in the footsteps of FDR's radio broadcasts.
Step-by-step explanation:
Following the example of Franklin D. Roosevelt's effective use of radio broadcasting known as "fireside chats," the technology of television was likewise utilized by subsequent presidents to connect with the American populace. In particular, it was President John F. Kennedy and President Ronald Reagan who are well-known for their use of television to engage with the nation, providing comfort and promoting their policies during a time when TV was becoming a dominant medium of communication.
Both presidents understood the power of television in shaping public opinion and wielded it as a tool to restore the nation's confidence during various situations. These acts demonstrate the evolving relationship between media technologies and the presidency as a means to reach out to the public, reinforcing the role of the president as a communicator in chief.