How do you hook up an older Sony home theater to a newer Samsung Blu-ray DVD to a Philips Smart TV

[wigginsm1972]

I am trying to hook up an older model Sony home theater to a newer model Samsung Blu-ray DVD to a Philips Smart TV

 

[americanaudiophile]

Without model numbers you won't get an exact answer.
In general you would connect the BD player to the TV with HDMI.
Depending on what audio outputs you have on the TV and which audio inputs you have on the HTS you would connect the TV to the HTS. You might need an active converter to do this
You may have to turn on the audio output, turn the TV speakers off, and change the audio output type in the TV menu to get it working.