A method for receiving in a device (303) for receiving, decoding and processing multimedia services, connected to an IP multicast network, the multimedia services of at least one offer among many offers of multimedia services being delivered in form of a bundle of transport streams multicast on the IP multicast network by an Internet Service Provider (ISP). The method comprises obtaining, using the device (303), an offer information (701) multicast at a predetermined known offer localisation within the IP multicast network, processing the offer information (701) to extract for each offer the determined service provider offer localisation (LN0,1, LN0,2) within the IP multicast network at which stream information may be obtained, obtaining, for that offer, a stream information (702, 703) multicast at the determined service provider offer localisation, processing (801) the stream information to obtain a transport stream list (802) of transport streams (TSX,Y) and respectively related stream localisations (LN1,1 ― LN1,4 , LN2,1 ― LN2,3) within the IP multicast network, storing the transport stream list (802) in the device (303), generating a request for a transport stream (TSX,Y) using the device (303) and obtaining IP packets multicast at the stream localisation (LNX,Y) identified in the transport stream list (802) for said transport stream, extracting packetized data from the obtained IP packets, thereby obtaining the transport stream.