How do I set up Roku on my TV?

Excuse me, could you please provide me with a step-by-step guide on how to set up Roku on my TV? I'm a bit unfamiliar with the process and would appreciate any assistance you could offer. Specifically, I'm interested in knowing what cables or accessories I may need, as well as any settings I should adjust on my TV or Roku device to ensure a smooth setup. Additionally, if there are any common issues or pitfalls to avoid during the setup process, I would be grateful for any insights you could share. Thank you for your time and assistance.