How can I easily find and tune to Antenna or Cable Channels on my Philips Android TV?

FOR 2020 AND NEWER ANDROID TELEVISIONS, pressing OK while on the TV input will bring up a list of channels with their channel numbers and names shown on the right side of the screen. You can then use the direction buttons (up/down/left/right) to navigate to the channel you wish and select it using OK.
 

FOR 2019 ANDROID TELEVISIONS, pressing OK while on the TV input will bring up a list of icons on the bottom of the screen. You will see an icon for Program Guide on the left and then icons for each channel going to the right. You can then use the direction buttons (up/down/left/right) to navigate to the channel you wish and select it using OK.