@SP2-
KDL-32L4000.has 2 HDMI ports, so any model Roku currently available can connect to it.
I would suggest getting one of the models supporting 4K resolution. They will provide you service should you upgrade to a 4K tv in the future, but will work fine on your current HD set.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
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Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X