A:AnswerHello Bubba, I am very sorry you are having trouble with the captions on your LC-43LB481U. Please contact us at 855-544-2030 for troubleshooting assistance.
A:AnswerThis TV does not have a built-in DVR. Actually, I don't think I've ever heard of any TV that has a built in DVR.
The "Smart Features" enable this TV to connect to several streaming services such as Netflix, Plex, Hulu, Amazon Video, etc. (and basically any channel that Roku...just Google "Roku channels for more details on this"). I hope this helps!