Hi Teeshot! For optimal sound quality with no delay, ensure the soundbar is connected via HDMI ARC. Alexa is built in to the HW-Q850T, ensure the Alexa microphone has not been muted for the voice assistant to work. If you have any issues, please reach out to Samsung Audio Support at:
• Phone: 1-800-SAMSUNG / Available 8 AM - 9 PM EST, Mon - Fri
• LiveChat or Email: https://www.samsung.com/us/support/#contact_us_for_support
We look forward to hearing from you.
^Tim