Its business comprises the provision of analog and digital cable television, fixed and mobile telephone services, primarily to residential customers in Flanders and Brussels.

Through its acquisition of Sinfilo, Telenet acquired a large network of Wi-Fi hotspots in addition to its cable Internet service.

In December 2016, Telenet submitted a proposal for the acquisition of SFR Belux from Altice, which has been authorized on 20 June 2017.

[6] Its main competitors on the Belgian fixed telephone market are Numericable and VOO in Brussels, using optic fibre.

Since 2012–2013 cable customers need not pay an extra subscription to receive digital TV, but they must purchase or rent a set-top box in order to view the digital TV channels and to use the interactive services based on the Multimedia Home Platform.

In July 2008 Telenet reached an agreement with Interkabel's INDI regarding the acquisition of its 800,000 cable TV customers.

Its main competitors on the Belgian digital television market (DVB-C) are Numericable and VOO in the Brussels region.

It closed down 25 Augustus 2020 The Digibox (set-top box) and Digicorder (personal video recorder) are made by Advanced Digital Broadcast.

No longer made by Advanced Digital Broadcast, the TV-box is part of the Horizon 4 platform of majority stakeholder Liberty Global.

Telenet also offers several premium TV channel packs including: The French bouquets are provided from VOO.

On 21 June 2012, Telenet launched its pay TV digital terrestrial television based on DVB-T technology, called Teletenne.

[9] In 2014, Telenet acquired a 50% share of De Vijver Media from Sanoma, which owns SBS Belgium with the channels VIER and VIJF.

In 2018, Telenet acquired the shares of De Vijver Media's two other shareholders, Mediahuis and the duo Wouter Vandenhaute and Erik Watté, taking it full control of SBS Belgium.