Large TV Drywall Mounting

I need a technician with adept skills in mounting large televisions, specifically those 61" and above, onto a drywall. I'm looking to have the TV positioned in the middle of the wall for optimal viewing experience. The necessary mounting hardware is already available, hence, I require your expertise in ensuring a secure and stable installation. Knowledge of cable management and wall safety are essential for this project. Your previous experiences in similar tasks will greatly be valued.