Llythyrau oddi wrth Trebor [Lloyd Evans],
Llythyrau oddi wrth Trebor [Lloyd Evans],
Gwneuthuriad y fedal,
Gwneuthuriad y fedal,
Llythyrau oddi wrth Idris Foster,
Llythyrau oddi wrth Idris Foster,
Ymddiriedolaethau a phwyllgorau,
Ymddiriedolaethau a phwyllgorau,
Ymddiriedolaeth THP-W: Medal Syr Thomas Parry-Williams - er clod,
Ymddiriedolaeth THP-W: Medal Syr Thomas Parry-Williams - er clod,
Torion papur newydd,
Torion papur newydd,
Adroddiadau cyfranddaliadau,
Adroddiadau cyfranddaliadau,
Taflenni amrywiol a rhifynnau cynnar o'r TV Times a Television Weekly.
Taflenni amrywiol a rhifynnau cynnar o'r TV Times a Television Weekly.
Hanes HTV,
Hanes HTV,
Adroddiadau a chyfrifon Cwmni Teledu Harlech,
Adroddiadau a chyfrifon Cwmni Teledu Harlech,
Cerdyn gwahoddiad i'r Rhaglen Ddathlu gyntaf, 11 Hydref,
Cerdyn gwahoddiad i'r Rhaglen Ddathlu gyntaf, 11 Hydref,
Papurau amrywiol yn ymwneud ag ymddeoliad AP-W o Fwrdd Cymreig HTV,
Papurau amrywiol yn ymwneud ag ymddeoliad AP-W o Fwrdd Cymreig HTV,
Programme Contract Application, 1982 (Cardiff, 1982),
Programme Contract Application, 1982 (Cardiff, 1982),
'Application for new programme contract - particulars of directors',
'Application for new programme contract - particulars of directors',
Committee on Welsh Affairs, Session 1979-80. HTV Limited. Minutes of evidence, Wednesday 3 December 1980 (London, 1980),
Committee on Welsh Affairs, Session 1979-80. HTV Limited. Minutes of evidence, Wednesday 3 December 1980 (London, 1980),
Broadcasting and youth (London, 1979),
Broadcasting and youth (London, 1979),
'The Independent Broadcasting Authority and HTV Group Limited. Supplement Agreement. 27 July 1979',
'The Independent Broadcasting Authority and HTV Group Limited. Supplement Agreement. 27 July 1979',
Broadcasting. Presented to Parliament ... July 1978 (London, 1978),
Broadcasting. Presented to Parliament ... July 1978 (London, 1978),
Report of the Working Party on the Welsh Television Fourth Channel Project,
Report of the Working Party on the Welsh Television Fourth Channel Project,
'HTV Limited. Reply to IBA Questionnaire on ITV structure and contracts for the post 1979 period',
'HTV Limited. Reply to IBA Questionnaire on ITV structure and contracts for the post 1979 period',
