▁Television ▁and ▁public ▁appearances ▁In ▁addition ▁to ▁performing ▁on ▁musical ▁programs , ▁he ▁appeared ▁on ▁television ▁as ▁a ▁judge ▁for ▁K BS ' s ▁ 2 0 1 2 ▁Top ▁Band ▁Season ▁ 2 ▁and ▁M BC ▁Music ' s ▁ 2 0 1 4 ▁Green ▁Song ▁Cont est . ▁In ▁the ▁fall ▁of ▁ 2 0 1 5 ▁through ▁January ▁ 2 0 1 6 , ▁he ▁was ▁an ▁original ▁cast ▁member ▁of ▁Know ing ▁B ros , ▁his ▁debut ▁performance ▁in ▁an ▁entertain ment ▁show . ▁The ▁show ' s ▁production ▁team ▁referred ▁to ▁him ▁as ▁" one ▁of ▁the ▁three ▁biggest ▁guitar ists ▁in ▁Asia " ▁during ▁one ▁episode . ▁ ▁On ▁August ▁ 9 , ▁ 2 0 1 2 ▁he ▁performed ▁and ▁served ▁as ▁an ▁events ▁judge ▁with ▁other ▁mus icians ▁at ▁the ▁" P ye ong ch ang ▁Special ▁Music ▁Festival " ▁for ▁ment ally ▁disabled ▁mus icians , ▁in ▁comm em oration ▁of ▁the ▁ 2 0 1 3 ▁Special ▁Olympics ▁World ▁Winter ▁Games . ▁And ▁he ▁served ▁on ▁the ▁jud ging ▁committee ▁at ▁the ▁Ministry ▁of ▁Un ification ' s ▁music ▁contest ▁" Uni ▁Music ▁Race ▁ 2 0 1 6 ▁( UM R 2 0 1 6 ) ". ▁ ▁L ect ures ▁and ▁music ▁education ▁He ▁lect ures ▁on ▁music ▁and ▁the ▁philosophy ▁of ▁music ▁and ▁has ▁been ▁a ▁pract icing ▁music ▁instruct or ▁at ▁D ong du k ▁Women ' s ▁University , ▁fac ulty ▁at ▁Se oul ▁Arts ▁College ▁( S