A:AnswerHello - Yes, the soundbar was designed to fit perfectly under the TV and not interfere/ block remote functions. The HW-Q60T soundbar is 38.6" x 2.3" x 4.1. The space between the feet of the 65Q60T TV is 42.8' x 9.1". It will fit great! ^Cris
A:AnswerI don't remember seeing any RCA audio outputs on the back. It does have optical and HDMI out. I had it hooked up to a Sony receiver I purchased... 16 years ago (before HDMI) through the optical connection and it worked great. If your receiver doesn't have an optical connection, you can always buy an audio extractor that can pull the audio out of either the optical or HDMI and output it through an RCA jack.