As the title suggests, on my Samsung Q60A the TV guide is not available when time shift is enabled. This is so frustrating as browsing the guide is an essential part of TV enjoyment, as is being able to pause the TV to make a cup of tea. I also own an LG 55UP81006LR that I paid the same price for. With this TV you can pause the program, browse the guide and even open apps and watch other shows then go back to your paused program.
Samsung, please, please, please release an update for the Q60A that allows the TV guide to be used when time shift is enabled!