The Philips 40PFS6009/12 is a smart TV with the TITAN OS operating system, which provides access to many popular streaming apps such as Netflix, Disney+, Amazon Prime Video and IPTV applications. You can install IPTV services via the integrated app store, for example via apps such as Smart STB, DupleCast IPTV or SmartOne IPTV. The TV also supports Chromecast and Miracast for easy transfer of content from other devices.

Yallo TV is an IPTV service that is usually used via an app or a web player. As the TV supports IPTV apps and you can install your own IPTV services, it is generally possible to watch Yallo TV on this device, provided that Yallo TV offers a compatible app or web access that you can use via the browser or an IPTV app.

An official, direct Yallo TV app for this Philips TV is not explicitly mentioned in the available information. However, you can bring Yallo TV from your smartphone or tablet to the TV via IPTV apps or casting (Chromecast).

To summarise: Yes, you can watch Yallo TV on this TV if you install the service via an IPTV app or cast it from your smartphone. A native Yallo TV app is not directly confirmed, but the IPTV support and casting function make it possible to use it.