See what little is inside Logitech Harmony 350 universal remote control.
As MCU it uses PIC18F67J50, which is still available. It has an EEPROM, an iR-LED and an iR-receiver.
Somehow I've lost the pictures of the PCB front - it only contains the common PCB buttons though.

The remote control of Vodafones GigaTV 4K Box is very different from cheap ASIC or simple ones like Logitech Harmony 350 iR - it has a bluetooth enabled Broadcom BCM20734UA1 SoC in BGA package.

For pairing see Vodafone helpdesk wiki