Yes, you can connect your PC to the Toshiba TV via an HDMI cable.
1. Turn on your PC and TV.
2. Plug one end of the HDMI cable into the HDMI port on your PC or Mac.
3. Plug the other end of the HDMI cable into the HDMI port on your Toshiba TV.
4. Switch the TV's input source via the remote control and select the HDMI port that you plugged in.