To cast from your iPhone to a TV, there are several methods depending on your TV's compatibility and the equipment you have:

1. Using AirPlay (wireless, for compatible smart TVs and Apple TV):

   • Make sure your iPhone and TV (or Apple TV) are connected to the same Wi-Fi network.
   • On your iPhone, swipe down from the top right corner to open Control Center.
   • Tap "Screen Mirroring."
   • Select your TV or Apple TV from the list.
   • Your iPhone screen will be mirrored on the TV.
   • To stop mirroring, open Control Center again, tap "Screen Mirroring," and select "Stop Mirroring."
     (Works best with Apple TVs or AirPlay-compatible smart TVs.)

2. Using an HDMI cable (wired connection):

   • Use a Lightning to HDMI adapter (for older iPhones) or USB-C to HDMI adapter (newer iPhones).
   • Connect the adapter to your iPhone and an HDMI cable from the adapter to your TV.
   • Switch your TV input to the HDMI port in use.
   • Your iPhone screen will display on the TV.

3. Using devices like Chromecast or Roku:

   • For Chromecast:
     • Connect the Chromecast device to your TV and set it up with the Google Home app on your iPhone.
     • Open a compatible app (like YouTube), tap the cast icon, and select your Chromecast device.
   • For Roku:
     • Open Control Center on your iPhone and tap "Screen Mirroring."
     • Select your Roku TV or device from the list.
   • Some apps might require a third-party app for screen mirroring.

4. Using third-party apps (if your TV is not AirPlay compatible):

   • Apps like AirBeamTV let you mirror your iPhone screen to Android TVs or other smart TVs without AirPlay.

Note: Your phone and TV should be on the same Wi-Fi network for wireless casting methods. Some streaming apps may block screen mirroring due to copyright restrictions. This outlines the main common ways to cast from an iPhone to a TV, covering wireless, wired, and device-based methods.