Simultaneously, Zaven hosts and produces the morning show Bonjouren on Sawt Kel Lebnan Radio and leads two podcasts Count to Ten in collaboration with GIZ and 100/100 The Full Grade with LAU as part of its centennial commemorations.

Before that Zaven was the face of The Munathara Initiative’s Sho Awlak talk show (2022 – 2024) that brought together key national broadcasters to commit to public interest journalism.

[3] Zaven holds a master's degree in Communication Arts, a discipline concerned with advertising and media, from the Notre Dame University (NDU) in Zouk Mosbeh, Lebanon.

Within the show's first year, Zaven was making headlines through the controversial issues he investigated, such as the toxic wastes scandal, the Israeli kidnapping of Mustafa Dirani, and the ban of the Lebanese Forces.

In August 2012, Zaven kicked off his show AalAkid on Future TV, a collaboration with director Bassem Christo and French producer Péri Cochin through their production house Periba.

AalAkid was received by critics and viewers with enthusiasm, as it reshaped the Lebanese social talk show experience and established new foundations for conflict resolution through media.

[11] In October 2014, Zaven launched his talk show Bala Toul Sire that continues his run on Future Television, with episodes about life, society and people in the form of a live weekly magazine, covering different topics stemming from current headlines or the unreported margins.

[12] In September 2019, shortly before celebrating his 20th anniversary at Future TV, the station ceased all its production operations due to financial losses,[13] and thus Zaven’s show Bala Toul Sire was terminated.

[17] In November 2021, Zaven joined The Munathara Initiative as the host for their Lebanese version of Townhall, a debate talkshow that brings together key national broadcasters to commit to public interest journalism.

In 2024, Zaven hosted GEN Z talk show on Halalondon satellite channel, and 100/100 The Final Grade podcast on the occasion of LAU's centennial.

In 1996, he received the Honorary Shield from the Lebanese Press Syndicate for his efforts in the live media coverage of the massacre during the 1996 shelling of Qana, a part of the Israeli Operation Grapes of Wrath.

Kouyoumdjian came into the spotlight again in 1997 when he was awarded the second prize by the Commission on Sustainable Development, a framework of the United Nations, for his significant work in promoting development-related social issues in his show '5/7'.

That same year, he was also awarded the Honorary Key of the city by the municipality of Bourj Hammoud, an Armenian stronghold in the Matn District of the Mount Lebanon Governorate.

In 2002, Kouyoumdjian won the Arab Media prize at a ceremony in London by the College of the International United Kingdom for his efforts in promoting dialogue on social and communal issues in the Middle East.

Kouyoumdjian was honored in 2012 by the Lebanese State Alumni Community (LSAC) with one of its yearly five annual prizes, for his "great achievement in promoting freedom of speech and the values of democracy and human rights through his social talk shows".

The grand ceremony was held Thursday on May 19, 2016, at BIEL – Beirut, in the presence of senior government officials, the private sector, Arab retailers, entrepreneurs and the media.